If your having a problem with the softwsre @Pimax-Support can setup a teamviewer session & help you get it working.
There are many of us that have had no real major issue with tge software.
Yes sometimes there have been issues once in awhile that were caused by a video card driver or windows update that caused issues. But revolved either with rolling an update back or with the next piplay release or gpu update. The windows update that had caused an issue was the Creater's update that broke alot of programs at first launch.
A full reset of your pc was not required to remove/uninstall piplay. You could have used the uninstaller (best to also use something like 3rd party uninstaller). Or a restore point. I suspect you have a conflict occuring.
One user strangely enough discovered his old Razer keyboard had gone wonky & was causing the issue he was having with the headset. That was recently.