Hello Forum,
what is wrong, that the description field is not shown in my wiki?
I imported eg. TiddlyTools/Pin and ist looks like
It’s OK in https://tiddlywiki.com/
Thanks,
Stefan
I can’t give you the answer you’re looking for, but…
I had exactly the same problem. It was propagated to all my wikis, at some point. There is perhaps something odd about description that makes it vulnerable to this problem. But note: the field worked fine, the data could be retrieved no problem: {{!!description}} and it could be created and updated. It just refused to appear in edit view.
Eventually, I managed to fix it. Problem is, I have no idea what I did to fix it. It just started working again. 
That’s what happens when you run with the magic-fixes flag turned on. If it would just stay on, all our problems would disappear!
Check to see if $:/config/EditTemplateFields/Visibility/description exists with a text field containing hide
Also check $:/ControlPanel > Info > Advanced > Cascades > Field Editor to see if there is a tiddler that defines a custom cascade for [<currentField>match[description]then[...]
-e
Trust me, I poured over this for many wasted hours. I found nothing in the template to explain it. It was before cascades, too.
Let’s hope your pointers help @StS.
I would argue there is no way to hide something from the editor that can’t be found. possibly the hardest would be if some CSS was causing it not to be displayed.
remember we now have a field editor cascade as well