No GPS distance after upgrading to firmware 2.x

Hello.

I have two “t-beam” meshtastic boxes, which have several issues. I bought them on aliexpress marketplace. The ali support team says, here I can get answers regarding firmware etc.

After upgrading the firmware on both boxes from version 1.5.x to 2.x the shown distance is always “? m” (jpg: lower screenshot). Both boxes have GPS connect (jpg: both upper screenshots). Before upgrade “800 m” and the north-direction-arrow have been on display).

What can I do?

problem was solved by upgrading to firmware 2.0.2