Pen Presure Not Working on Surface Pro

[L. A.S.]

I'm trying to use my Surface Pro 4 to use Opentoonz but the pen pressure wont work and i don't know how to get it to. Does somebody know how?

[Rodney]

We may need to wait until someone with a Surface Pro 4 sees this topic and chimes in.

Until such a time we can work through the prime candidates and possibilities.

Are you able to go into the pen settings on the Surface Pro 4?

[OneDollar]

I'm also having this problem on a Surface Pro 4. I've installed the latest WinTab drivers, and have pressure working in other programs (e.g. CLIPStudio Paint, OneNote), but not OpenToonz.

Pretty sure this worked in the Pro 3, so not sure what's different.