free draw bezier not working

If the suggestions by mark@headTrix  don't work:

Try resetting the Workspaces:
Reset a workspace
Reset the current workspace to return to its original, saved layout of panels.
1. Do one of the following:
• Click the Workspace menu icon and select Reset to Saved Layout.
• Choose Window > Workspace > Reset to Saved Layout.
from here:
https://helpx.adobe.com/premiere-pro/using/workspaces.html

If that doesn't work, try Preferences > Audio Hardware and set Input to None.

If that doesn’t work, try updating or rolling back your graphics driver directly from the video card manufacturer’s site. If NVIDIA, do a clean install of the latest Studio Driver (NOT the Game Driver)

If that doesn't work, try creating a new project and import the old one into it.

Also, please help us help you:
https://community.adobe.com/t5/premiere-pro/faq-what-information-should-i-provide-when-asking-a-question-on-this-forum/td-p/3929027?page=1

The freezing thing is new but I've always have found masking in Premiere to be way harder than it should be. I recommend using After Effects if you have access to it. You will save yourself some frustration.

Hi,

I just tested in on my computer, and it seems to work just fine. Maybe try with a different clip, or try quitting Premiere and then restarting while holding down the option key (alt on PC). And to reset the preferences and the plug-in cache,

hold down Shift-Alt (Windows) or Shift-Option (Mac OS) while the application is starting. Release the keys when the dialogue window appears.

Hope that helps.

Cheers,

mark