I quickly wanted to report a bug I was able to solve. Just incase anyone encounters the same: The input field for "Sensorless ERPM" under FOC=>Hall Sensors will randomly autocorrect and will only allow values below 999 or above 100000. This was caused by having dot ... and comma ,,, swapped in my german Windows PCs system-wide settings. I am sure it will be the same for other input fields as well, but not for all.
I think this is pretty rare, and now here it is. I don't know if this can be fixed, as it's probably related to QT.