I’m finally finding some time to work on my “big” baserow project - and I think I found a bug!
I created a table by importing a CSV. My “Category” field defaulted to a single line text. I added a grouping, so it would display fields by category. Then I tried to change the single line text “Category” field to a single select field, but I get the “Action not completed” unknown error message. After that, the field is broken (it’s like it gets halfway changed to single select) and the only way to keep working is to refresh, at which point it’s back to a single line text again.
Deleting the grouping, and then changing the text field to a select field works perfectly, however. So low priority, just letting you know!