Since some time, I can no longer access the data editor. For new apps I will use the Retool Database but for some older apps, I used the managed_db in connection with the Data Editor. Working on or debugging these apps was much easier when the Data Editor was available, since I did not need to write a query every time I wanted to take a quick look or edit the actual data.
While I could move the data from the managed_db to the Retool Database for more convenience, I would rather not invest this work in some of my older apps.