I was able to use ArduSimple RTK GNSS normally with Esri Collector. Now with Field Maps it behaves strange. I have an NTRIP subscription and my integration app Lefebure NTRIP works great. It can supply positions to other apps via mock location. The values are reported correctly in all apps. Even other Esri apps like Survey123 and Quick Capture work fine.
In Esri Field Maps it reports wrong accuracy. The horizontal accuracy is stuck on 3.9m and vertical on 50cm! Any suggestions to make it work correctly?
My phone is Android 12.