Custom taxonomy disappeared from posts

Hello,

I have 2 custom taxonomies for years on my website, with Pods

Both linked to posts, always worked well

I don’t know if I did something, but today, 1 of those taxonomy cannot be found anymore when I edit a post – it can be found in Posts > “quick edit”, but not anymore in post edit

Do you know what could be the cause, how I could fix this?

Illustration: https://imgur.com/a/Ae211zf

Many thanks for your help