Station logo disappears after every PUT with station update

[piotr.pingo]

Im using SignalK plugin to report my weather data as station f057a773
We are a sail boat so we move. The plugin sends PUT to update station location.

When I upload station logo it looks ok at the station page.... until we move and new PUT is send. The the logo is erased.

Plugin https://github.com/Peter-Petrik/signalk-windy-apiv2/

Station winndy.com/station/pws-f057a773