Substance Painter 11.1.0 pen lagging

I wouldn't rely on ChatGPT information blindly. The Raytracing setting only applies to baking, it has nothing to do with interactions in the viewport, so there is no point in disabling (it would just make your baking slower). 
SVT is a setting that allows you to cache parts of your mesh that are not currently displayed (for ex. if you are zoomed in very close, we don't calculate the part of the mesh you don't see). I am not sure that disabling would do anything in this case, and in any case the pen lag should be fixed with the latest bug fix.

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I think I can help, until they fix it, disable SVT, Sparse Virtual Texture: OFF, for more details search for this on Chatgpt, but when you disable it the Pen flows normally without crashes, if it's still heavy, disable Ray tracing in the settings as well.

Could you DM me the file with the repro steps? 

@ValeriaGrnt I can confirm that I have an issue now with backward compatiblility with a file made in 11.03, where a toggled layer seems to break projection of masks on other layers. Not a huge deal a rollback to 11.03 to make my edits isnt too painful

Yes I think thats done it, seems sorted.

Not heavily stressed test it but it seems to be good at a glance

Thanks 

I did notice quickly on another file, when I turned off a layer all the projections seemed to break. Not sure if thats just an error with that file though. I think it was created in 11.03. Ill rollback to 11.03 and turn the layers off and on later to see if its just a weird broken file. 

Hello, we just released a bug fix version 11.1.2 that should address the pen tablet lag. Could you please update and check if it solves the problem? 

Seems fixed in 11.1.2 . Its in the patch notes as being addressed too. 

I just want to add to the conversation and hope that Adobe will fix the issue soon.
I'm using an XP-Pen Tablet and I'm also experiencing lag when using windows ink. Drivers are obviously up to date.

I've noticed that there's no lag when I start a new project with only a single layer. It seems to start lagging when there's many layers.

I switched back to Version 11.1.0 The pen pressure works and I'ts compatible with newer version files too. I guess I will stick to this version until the issue got fixed 😄

Exact same issue, can't continue working right now because of it. Since the file versions are updated I can't revert to an older version of Substance Painter either. Updated all my drivers, tried various older versions for my tablet drivers to see if that would improve anything. Nothing works so far and even files that I've worked on for a long time or finished working lag when using windows ink.

Tablet: Huion Kamvas Pro 24