Gallery Block Issue

[papazetis]

After updating to v5.9.2, the gallery block returns an error on the rest API and doesn't load image sizes. This affects only existing libraries, not ones you create after the update.

​https://prnt.sc/RKLUuLJAivIy

Try to select any image within the library and you'll get a rest API error on the console

​https://prnt.sc/UOEddnBnX9br
​https://prnt.sc/LQnsBIZIQ6Me

[glendaviesnz]

I wasn't able to replicate this on a fresh 5.9.2 install.

[papazetis]

Replying to glendaviesnz:

I wasn't able to replicate this on a fresh 5.9.2 install.

That happened when I updated Wp from 5.8.4 to 5.9.2
All existing galleries return these errors.

I can't reproduce it either on a fresh install.
I installed 5.8.4, created a gallery and updated wp to 5.9.2

On the website that I have the issue with, I deactivated all plugins and used the default twenty theme and I am still getting these errors.

I'll do some new tests and try to reproduce it.

​https://prnt.sc/_DRvgnNHPmok

[papazetis]

The issue is not related to WordPress.

It seems it's an issue with wp all import cause the images are on gallery blocks but images IDs are not matching the ones on media library