I have a similar recurring problem where, upon opening the Windy Apple Watch App from a complication it shows a 3-hour step forecast. I have the setting for 1-hour steps enabled. If I go to settings, it confirms this. Then going back to the forecast it appears to reload with 1-hour steps.

One difference to the above reports however is I don't need to change any of the settings. It seems that opening the settings screen is enough to correct the problem.

I've uploaded a screen recording of the behaviour on my device: https://d.pr/v/USsdYc

This doesn't happen every time I open the app and I haven't identified a particular pattern besides it occurs often enough to be irritating.

When it does happen, the "Account" section of the Settings is temporarily unset which sounds like the watch app could be losing logged in state temporarily?

Is this still something the developers are aware of? Or has anyone found a permanent fix?