Masking tool

[Rachel27268280jqqs]

I am not sure what is going on but when I select the masking tool for the subject it is only recognize the bottom left hand corner.  It was working all day today and just started doing this.  I have rebooted my computer, reinstall Lightroom Classic and it is still doing the same thing

Please help if you can

Thank you Rachel

[Sameer K]

Welcome to the Lightroom Community. I'll need more info to help you with this.

What version of Lightroom Classic & the operating system are you working on? Has this started to happen since a recent change on your computer?

Please go to Help > System Info in Lightroom Classic & share the info with us.

Try to reset the GPU caches by following these steps. Please go to the following locations.

• C:\Users\<Username>\AppData\Roaming\Adobe\CameraRaw
• Press the Windows > Enter 'Run' > Type %appdata%\Adobe\CameraRaw > Hit OK
• Rename the GPU folder as 'GPU.old' (add .old at the end)
• Restart Lightroom Classic again.

Let me know how it goes from here.
Thanks!
Sameer K