Invisible paintings

This is happening to me too

This following is marked as "Known Issues" in Minecraft 1.16.220 release, meaning that they are working on it to fix

I came here to report the same.  Random seed.

All paintings are showing as invisible. The operator of the realm can see them, and potentially other players with OP, but not normal players. My secret vault is EXPOSED!! Hope they get it sorted.

**Update: Was just made OP and relogged in and paintings are still invisible to me. Not sure if only the realm owner can see them, or why the results are different. But they are invisible for sure, even though they are there.

I’m deciding  to report that was in 2 mouths ago for helping me to fix this issue.

Duplicate of MCPE-121718

Thank you for your report!
We're tracking this issue in MCPE-121718, so this ticket is being resolved and linked as a duplicate.

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Just had exactly the same issue, updated yesterday and now I can't add anymore paintings on the game