There is also another problem with my X2Max, which appeared after the latest firmware update (via Thinkrider Tools app). From time to time, the resistance on the trainer goes up (or, more rarely, down) significantly for a second or two. You can see such peaks on the graph in the previous post. I mostly use ERG mode in Rouvy, and didn't try another app and free ride mode yet. Does anyone have the same experience?
The app shows these version numbers:
BLECurrent version: V3.3.1
TMSCurrent version: V255.255.255
Current APP version:V2.1.32