Brushes with airbrush style build-up effects enabled create large dot at beginning of stroke.

[Shaneyshaneshane]

Just turned on Photoshop today to find that any time I try to draw with the Classic Cartoonist brush, there is a large dot at the beginning of the stroke.  After some trial and error, I realized toggling the default "enable airbrush style build-up effects" off seemed to fix thep problem.  Not sure if there are other brushes affected.  Wondering if anyone has a solve other than toggling the brush effect off or saving out a new brush.  

[sc14300280]

I came here to report this exact issue with the Classic Cartoonist brush. Your suggestion to toggle off the "enable airbrush style build-up effects" feature "fixed" the issue for me as well. 

[Shaneyshaneshane]

I'm still having the issue and it seems to be getting worse.  Now pretty much any brush with airbrush effects automatically toggled "on" creates a full sized brush stamp at the beginning of a stroke. I've reported the issue to Wacom as well just in case it's an issue with their drivers.  

[sc14300280]

Sounds like a Photoshop problem. Kyle T. Webster seems to be aware of the issues which will hopefully expidite a fix.
https://twitter.com/kyletwebster/status/1257318473383833602

[jfi0rin0]

Hopefully Adobe addresses this issue soon. It wasn't a part of their last Photoshop update. Turning off airbrush/buildup solves the issue but it's very annoying, especially when you need to utilize that feature.

[PECourtejoie]

Hello, please update to 21.2.1, and report here it it helped, as brush issues involving buildup seem to be addressed: https://helpx.adobe.com/photoshop/kb/fixed-issues.html#photoshop-desktop-fixed-issues