I cannot replcate this. When I add a tag it is stored and displayed. Did you press enter to finish the input? @hytsch

@angieradtke is this similar to what you were experiencing?

Right, that seems to be the issue I have

The last element of the array is missing

Then I must repeat my question. Did you press enter after typing the tag name? If not, there is no input.

in my case I have 25 tags selected, but in the field I can only see 24.
In the frontend I can see all 25. So the last one is missing in the backend.
If I reorder the tags, i can see that always the last one is missing.
This is why I think it is a wrong counting array. But if I have less than 24 everything is fine.

Then I think it is another issue. If I understand this here correctly then the user wants to add a new tag but this new tag is not stored.

Hi all, I can't describe it any better, just repeat that the error exists, and that it only appears after a certain number of tags. It seems important to me to point out that we have deactivated Ajax in the tag option configuration. Now the work with the tags works perfectly. => AJAX is the problem!

Thank you @hytsch and @angieradtke. Your issues are related and the number of tags is relevant.

Hopefully PR #39254 will address this issue. Please help testing. Thanks !