<![CDATA[Updated iOS now getting WebGL errors]]>cd8e9c83-b584-4b44-9c5e-a88183a25091-image.png

Below is the first of 22 listed in the error console.

{
"errorID": "compile-shader-shextrablur-is-critical-true-error",
"overlay": "radar",
"runningPhase": "3_redrawFinished",
"timestamp": 1761741768337,
"runningMinutes": 0,
"type": "customLogError",
"msg": "Compile shader 'shExtraBlur' (is critical: true) error:",
"url": "capacitor://app-webview.windy.com#/menu?38.135,-91.890,5",
"ver": "47.1.4",
"target": "mobile",
"platform": "ios",
"device": "mobile",
"latestBcast": "store: overlay radar (136ms ago at 1761741768201)
bcast: paramsChanged (34ms ago at 1761741768303)
bcast: leaflet-paramsChanged (33ms ago at 1761741768304)
store: timestamp (15ms ago at 1761741768322)
radar: open (5ms ago at 1761741768332)",
"module": "GLNowBaseRender",
"stack": "createProgramObj@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:251778
compileShader@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/_shared/lightnings.js:1:44455
Ae@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/radar.js:1:51992
onCreateCanvas@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/radar.js:1:60238
onAdd@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:31890
_layerAdd@capacitor://app-webview.windy.com/js/leaflet140_patched_tileLayer.v18.js:5:64432
whenReady@capacitor://app-webview.windy.com/js/leaflet140_patched_tileLayer.v18.js:5:42435
addLayer@capacitor://app-webview.windy.com/js/leaflet140_patched_tileLayer.v18.js:5:64811
addTo@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:30930
ra@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/radar.js:1:61198
emit@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:17085
@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/radar.js:1:67446
map@[native code]
@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/_shared/component.js:1:11107
Rt@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/_shared/component.js:1:8358
en@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/_shared/component.js:1:12495
za@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/radar.js:1:68161
mount@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:179106
n@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:174783"
}

]]>https://community.windy.com/topic/42388/updated-ios-now-getting-webgl-errorsRSS for NodeFri, 16 Oct 2026 11:55:35 GMTWed, 29 Oct 2025 12:54:57 GMT60<![CDATA[Reply to Updated iOS now getting WebGL errors on Sat, 08 Nov 2025 22:57:06 GMT]]>@nathan96753 Unfortunately iOS 18.7.2 (22H123) is the issue. Restart your phone and then check again for iOS updates (Settings / General / Software Update). If 18.7.2 is visible install it.

If you’re not offered the updated build 22H124 then this would point to an Apple release issue - file feedback with Apple.

]]>https://community.windy.com/post/220969https://community.windy.com/post/220969Sat, 08 Nov 2025 22:57:06 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Sat, 08 Nov 2025 18:09:09 GMT]]>@schilpat same issues here. App does not load ANY layer data. iPhone 13Pro 256g. iOS 18.7.2 (22H123) Have set beta update to off then two fresh installs of app no help.

]]>https://community.windy.com/post/220965https://community.windy.com/post/220965Sat, 08 Nov 2025 18:09:09 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Sat, 08 Nov 2025 16:07:45 GMT]]>Still the same problem. Any suggestion except upgrade to iOS 26?

{
"errorID": "compile-shader-shcloudtop-is-critical-true-error",
"overlay": "wind",
"runningPhase": "2_dependenciesResolved",
"timestamp": 1762617508263,
"runningMinutes": 0,
"type": "customLogError",
"msg": "Compile shader 'shCloudtop' (is critical: true) error:",
"url": "capacitor://app-webview.windy.com#?50.088,14.412,5",
"ver": "47.2.1",
"target": "mobile",
"platform": "ios",
"device": "mobile",
"latestBcast": "store: startupWeatherShown (10ms ago at 1762617508253)
bcast: rqstOpen startup-articles (10ms ago at 1762617508253)
bcast: paramsChanged (6ms ago at 1762617508257)
bcast: leaflet-paramsChanged (6ms ago at 1762617508257)
store: visibleProducts (5ms ago at 1762617508258)",
"module": "TileRenderer",
"stack": "createProgramObj@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:251896
compileShader@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:270488
onWebGlInit@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:266324
init@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:265129
onopen@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:283439
a@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:248000
@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:248414
r@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:1455
s@capacitor://app-webview.windy.com/v/47.2.1.mob.91c6/mobile.js:1:1659"
}

]]>https://community.windy.com/post/220964https://community.windy.com/post/220964Sat, 08 Nov 2025 16:07:45 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Wed, 05 Nov 2025 20:07:19 GMT]]>Apple appears to have fixed the WebGL issue in a new build of 18.7.2 (22H124) which has now been publicly released.

NB you may need to reset iOS Beta Updates to Off to make the updated release visible

]]>https://community.windy.com/post/220851https://community.windy.com/post/220851Wed, 05 Nov 2025 20:07:19 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Sun, 02 Nov 2025 16:12:35 GMT]]>@MetalAnon
It is an Apple pre load app. I tried to share it here but it wouldn’t copy and I couldn’t find it in the App Store. Try this link https://feedbackassistant.apple.com/

]]>https://community.windy.com/post/220694https://community.windy.com/post/220694Sun, 02 Nov 2025 16:12:35 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Sun, 02 Nov 2025 16:09:35 GMT]]>@dugeem
Reported also FB20875716

]]>https://community.windy.com/post/220693https://community.windy.com/post/220693Sun, 02 Nov 2025 16:09:35 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Sun, 02 Nov 2025 13:43:37 GMT]]>@dugeem

Hey, I’m having trouble finding the proper page to post Apple feedback for this problem. You have a link to your feedback?? Thanks!

]]>https://community.windy.com/post/220688https://community.windy.com/post/220688Sun, 02 Nov 2025 13:43:37 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Sun, 02 Nov 2025 13:40:52 GMT]]>@schilpat

I was afraid that’s where we end up. Thank you for checking that. I’ll see what I can do about filing bug with Apple and thank you to the other two participated in this thread much obliged. Have a good day.

]]>https://community.windy.com/post/220689https://community.windy.com/post/220689Sun, 02 Nov 2025 13:40:52 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Thu, 30 Oct 2025 20:34:08 GMT]]>Have filed feedback (FB20873873) with Apple in relation to this issue. If possible I'd suggest others do the same.

]]>https://community.windy.com/post/220597https://community.windy.com/post/220597Thu, 30 Oct 2025 20:34:08 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Thu, 30 Oct 2025 16:05:26 GMT]]>@MetalAnon Hi, since the error appeared after updating the iOS version, and the version 18.7.2 (RC) is not a stable version, there is a high chance that something related to WebGL got messed up by Apple in that version. We cannot do much about it :/ We always recommend using stable OS versions to prevent these problems.

]]>https://community.windy.com/post/220586https://community.windy.com/post/220586Thu, 30 Oct 2025 16:05:26 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Thu, 30 Oct 2025 10:26:22 GMT]]>@schilpat I saw the new update and installed it however there’s still an issue and another error in the log

{
"errorID": "canvas-context-is-lost",
"overlay": "wind",
"runningPhase": "3_redrawFinished",
"timestamp": 1761819572658,
"runningMinutes": 0,
"type": "customLogError",
"msg": "Canvas context is lost",
"url": "capacitor://app-webview.windy.com",
"ver": "47.2.1",
"target": "mobile",
"platform": "ios",
"device": "mobile",
"latestBcast": "store: timestamp (19ms ago at 1761819572639)
store: timestamp (19ms ago at 1761819572639)
store: availLevels (19ms ago at 1761819572639)
store: product ecmwf (19ms ago at 1761819572639)
bcast: redrawFinished (2ms ago at 1761819572656)",
"module": "CanvasLayer"
}

Also this error…

{
"errorID": "compile-shader-shmulti-is-critical-true-error-repeate",
"overlay": "wind",
"runningPhase": "2_dependenciesResolved",
"timestamp": 1761819572655,
"runningMinutes": 0,
"type": "customLogError",
"msg": "Compile shader 'shMulti' (is critical: true) error: (repeated)",
"repeated": 10,
"url": "capacitor://app-webview.windy.com",
"ver": "47.2.1",
"target": "mobile",
"platform": "ios",
"device": "mobile",
"latestBcast": "store: calendar (16ms ago at 1761819572639)
store: timestamp (16ms ago at 1761819572639)
store: timestamp (16ms ago at 1761819572639)
store: availLevels (16ms ago at 1761819572639)
store: product ecmwf (16ms ago at 1761819572639)",
"module": "TileRenderer",
"stack": "createProgramObj@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:251896
compileShader@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:270488
onWebGlInit@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:266024
init@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:265129
onopen@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:283439
a@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:248000
@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:248414
r@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:1455
s@capacitor://app-webview.windy.com/v/47.2.1.mob.1b64/mobile.js:1:1659"
}

]]>https://community.windy.com/post/220572https://community.windy.com/post/220572Thu, 30 Oct 2025 10:26:22 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Thu, 30 Oct 2025 10:54:31 GMT]]>Also confirmed on iPhone 13 mini running iOS 18.7.2 RC (22H123)
Same behaviour in both Windy app v47.010417 & v47.020121

]]>https://community.windy.com/post/220570https://community.windy.com/post/220570Thu, 30 Oct 2025 10:54:31 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Wed, 29 Oct 2025 14:23:59 GMT]]>@schilpat iOS 18.7.2, pushed last night apparently. iPhone 13 Pro. All updated to latest.

Clicking on satellite does something strange…

6ee70d2d-b597-4a68-8838-498014e34ca5-image.png

Adding the following error to the log…

{
"errorID": "unable-to-create-programobj",
"overlay": "wind",
"runningPhase": "2_dependenciesResolved",
"timestamp": 1761747622629,
"runningMinutes": 0,
"type": "customLogError",
"msg": "Unable to create programObj",
"url": "capacitor://app-webview.windy.com",
"ver": "47.1.4",
"target": "mobile",
"platform": "ios",
"device": "mobile",
"latestBcast": "store: calendar (8ms ago at 1761747622621)
store: timestamp (8ms ago at 1761747622621)
store: timestamp (8ms ago at 1761747622621)
store: availLevels (8ms ago at 1761747622621)
store: product ecmwf (8ms ago at 1761747622621)",
"module": "GlParticles",
"stack": "createProgramObj@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:251778
compileShader@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/gl-particles.js:1:7451
initParamsAndShaders@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/gl-particles.js:1:5941
createGlStuff@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/gl-particles.js:1:5267
onCreateCanvas@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/gl-particles.js:1:16904
onAdd@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:31890
_layerAdd@capacitor://app-webview.windy.com/js/leaflet140_patched_tileLayer.v18.js:5:64432
whenReady@capacitor://app-webview.windy.com/js/leaflet140_patched_tileLayer.v18.js:5:42435
addLayer@capacitor://app-webview.windy.com/js/leaflet140_patched_tileLayer.v18.js:5:64811
addTo@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:30930
y@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/plugins/gl-particles.js:1:17609
onopen@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:248672
n@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:248019
@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:248411
r@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:1455
s@capacitor://app-webview.windy.com/v/47.1.4.mob.ca8b/mobile.js:1:1659"
}

]]>https://community.windy.com/post/220543https://community.windy.com/post/220543Wed, 29 Oct 2025 14:23:59 GMT<![CDATA[Reply to Updated iOS now getting WebGL errors on Wed, 29 Oct 2025 13:56:45 GMT]]>@MetalAnon
Hi, could you tell us what iOS version and what Apple device you are using? Does the error happen every time you open radar layer? Does it also happen on the satellite layer?

Thank you!

]]>https://community.windy.com/post/220541https://community.windy.com/post/220541Wed, 29 Oct 2025 13:56:45 GMT