Issue: Altitude offset

[birgander2]

Super cool app, I use it a lot since 2 years! But now I have the problem, that on my new phone the altitude shown in Urban Biker is always about 40-45m too high, while other apps like e.g. osmand or GPStest show the correct height. My phone has a barometer, but switching it on or off doesn't change much, so I assume this is GPS-related. Strangely enough, this "bug" was (and is) not present on my former phone, so quite likely it has something to do with the new phone or its firmware. Interestingly, the offset roughly corresponds to my local geoid height, is there maybe a correction missing somewhere? Apart from the altitude offset, everything is fine, so ascent / descent values seem to be correct.

Device: Umidigi Bison Pro, Android 11