Jodel: Location access does not work

After hving installed the recent version of Jodel (https://play.google.com/store/apps/details?id=com.tellm.android.app) clicking on the button which gains location access - nothing happens.

So I installed an old version (4.9) and registered gms with this version because I found out it couldnt register with gms @ microG usig the new version. After everything was registered correctly I updated to the new version (5.11).

But then it keeps the location it gained when starting the updated app for the first time (the old version couldnt start because the API changed meanwhile). It doesn't matter if I update my real location or use a mocked location. It will always stay the same.

Taking a look into locat tells me that there seems to be a problem with some gms service request after i refreshed my Jodel stream (which should update my location too):

Does anyone of you guys have a clue what's the reason for this problem? The checkup of microg tells me everything's fine.

System info:

Reproduce the issue using Jodel 5.11 after registering GMS with version 4.9, then compare the behavior when refreshing the stream or pressing the location-access button. Start with the locat logs and attached screenshots; done means the app can obtain and update the location instead of retaining the old value.