Masking Feature Not Functioning in Lightroom App

I am experiencing an issue with the masking feature in the paid version of the Lightroom app. Here are the details:-

*Platform:* [Windows Desktop] 
- *Version of Lightroom:* 14.1.1
- *Description of the Issue:*
- When I attempt to use the masking tool (e.g., Select Subject, Linear Gradient, etc.), it either does not respond or produces unexpected results. 

By @Dinesh_Hajare9158

Please be more specific about "unexpected results". Describe these or better yet show us (include your screen capture in your reply by clicking on the "Insert Photos" icon).

Also please be more specific about "does not respond".

Is there a particular mask type (for example: Sky or Subject or Linear Gradient) that these problems happen? Or does it happen for all masking types?

Please tell us the exact make and model of your GPU. Please make sure you have the most current driver for it. If you have an NVidia GPU, also make sure you have a studio driver and not a game driver.

Lastly, your software is known as Lightroom Classic 14.1.1, not Lightroom 14.1.1 (which does not exist).

Version of Lightroom:* 14.1.1

By @Dinesh_Hajare9158

I've moved your post from Creative Cloud Desktop to the Lightroom Classic forum.

Jane