Can you create a topic with the tag in the category without a form template?
Are you sure that the tag group “Demo” and the tag “paintbrush” are not limited to another category? You shared the tag configuration of the “General” category, so we know that any tag is allowed there. But that doesn’t confirm that the tag or the tag group is not configured to be used exclusively in another category like “feedback”.
Did you check the information on the tags page?
My tag configuration for the “General” category looks like yours, but my “fixed” tag cannot be used there because it’s limited to the “issue” & “translation” categories.
I found that the Demo tag-group was already enabled for the Demo category.
After I removed the Demo tag-group, from the Demo category, I was able to use the form in General.
So, the Restrict these tag groups to the ‘…’ category setting doesn’t only control the tag group usage for the category, but every category trying to use that tag-group. Is that how it is intended?
I think so. Your screeshot shows a part of this note:
Tags and tag groups specified above will only be available in this category and other categories that also specify them. They won’t be available for use in other categories.
I think your other issue is still relevant. Showing the name instead of the ID would be more helpful. This might be related to the recent changes to identify tags by ID instead of name.