Exporting a ProRes file after applying an Object Mask or Rectangular Mask with Lumetri adjustments delivers glitch effects.

Hi ​@raydallan 

Thanks for stopping by the Premiere forums and giving us some details about your Mask with Lumetri issue. In order to better troubleshoot, we need to ask for a few more details like if Mac (and what macOS) or PC (whether Windows 11/10, plus what driver version & build), what version & build of Premiere are you using, how’s your media stored (NAS/External) with our bug report details.
 

Also, if you could please let us know the following, this is also helpful to know:

• Does it affect all projects or only some? What about new, empty projects?
• Do you recall which Premiere this was last working in, and what might have changed? Any plugins, update to computer, etc.
• When did the problem first begin?

A screenshot or short screen recording may also be quite helpful here.

Hope to help!
Katie