EDIT: I changed the title because apparently it’s not related to the Widget, nor the table the Widget is using, but a table the Widget is referencing (more info in the following posts)
At first, it was working, then I tried to change layout, but the fields I moved simply disappeared without going into the hidden fields. Then the error in the bottom right started appearing
However, the error is different depending on the action I take. For example, I changed the Widget Layout (between Form, Compact, etc) and got a different error
got this after deleting the Widget and trying to create a new Card List widget
Ok… apparently the problem is not the Widget, but the table itself.
Went to the table and tried to insert some data… got this (and the table itself disappeared)
EDIT: apparently the problem is with the table the WIdget was referencing. I cannot even CLICK IT anymore (screen stays white and I get the error on the bottom right)
Thanks for reporting it. This bug is purely in the web client, so your data is not lost.
We are working on a fix for this, sorry for the inconvenience.