HS611 switch brush feature causing lag on MS Office apps

Hi all,

I recently purchased an hs611 from huion. Was super excited for it to arrive and now I'm bitterly disappointed...

I have assigned "switch brush" to the pen button and it works to switch from pen to eraser and back, but it glitches and lags everytime. For example, after erasing something and clicking back to pen again it will miss the first stroke after switching. This results in mistakes in what I'm writing.

Seems to happen in Word, OneNote, PowerPoint etc.

I have also tried to overcome this problem by assigning quick access shortcuts to swap between pens/eraser but they also are not working the way they should (sometimes they don't work at all and sometimes it makes the brush size huge instead of switching to eraser...?).

I'm not an artist but a teacher and I have been teaching online for a while now (still locked down in Melbourne...). So having technical errors during lessons really bugs me.

I also have an Xp Pen deco fun S which was very cheap but works perfectly. The pen/eraser toggle button works instantly and seamlessly in office applications.

Is there any known solution to this problem? I think it is probably a problem with the Huion driver, not the tablet itself.

Is Huion just garbage? Should I stick with Xp pen?