Current Pitool 263 but issues with all versions.
Nvidia driver version does not matter. Tried several years worth.
Asus 1080TI Gaming.
Asus ROG strix Z270E Gaming motherboard
Windows 10 1909-2004 version does not matter.
P5k+ model P2 serial 203
I have sadly yet to see a Pitool that works properly when changing Hz modes on my P5k+ 203. Every time i change it i have to change, then turn it off, restart all the services and hope it works. For the most part i only need to do it once but 120Hz i may need to do up to 5 times before it sticks. In 144 you sometimes just get one eye. I change a fair bit depending on the game and its getting very very tedious and has been an ongoing problem for years. Not much much more i can do than to let you guys know. Since you have now fixed Pitool performance and made it stellar in that department i really hope this get sorted soon.
I made this .bat script from sources around here that may be of use to others. Run as admin
taskkill /f /im pitool.exe
sc stop PiServiceLauncher
timeout 3 >nul
sc start PiServiceLauncher
timeout 1 >nul
start C:“Program Files”\Pimax\Runtime\Pitool.exe