Hi, could we write in english ? :-)
For the moment, nobody reported me problems on v65 and I don't have problems myself on my 3 devices.
When you says : ADB is yellow, you mean, you see the bolt icon ? If you see the bolt icon this means you see ADB green icon, this means all is fine.
But if you see ADB red and the red banner, this means ADB is disabled. A fix is to enable ADB wifi via sidequest like when installing QGO.
But in your case, you reinstalled the app and if you don't see the debug prompts, this is because ADB wifi is not set. Yous must click on sidequest to enable ADB wifi like in my video.
Also, check if the dev mode is enable in your mobile app. Some users lost developer mode in v64 because of Meta update.