PDF view on Gmail or Drive gets corrupted when switching to other tab

[heraldofsolace]

Description of the issue:
When viewing a PDF on Gmail, or Drive, if I switch to another tab and come back to it, the preview gets corrupted.

How can this issue be reproduced?

1. Open Gmail and open a PDF attachment, or open Drive and view a PDF file.
2. Switch to another tab
3. Come back to the previous tab.
4. The preview is now corrupted.

Expected result: The preview stays the same.

Brave Version( check About Brave):
Version 1.29.81 Chromium: 93.0.4577.82 (Official Build) (64-bit)

Additional Information: Check this video to understand it better. https://www.loom.com/share/4ae049d678cc4c16a52993b2ba52cf00

[JimB1]

I don’t know if it will make any difference, but can you get your browser updated and see if the issue is still there? Current is 1.30.89.

[heraldofsolace]

Same issue in the latest version.