I recently updated the domain provider for a domain of mine that is hosted through Cloudron (trying to completely detach myself from AWS...). When I made the switch (to Namecheap, which is already enabled and whitelisted through another domain I have hosted on Cloudron), it didn't create any DNS records in Namecheap for the current apps I have hosted on the original domain. It only created a record one by one if I went to each app in the dashboard, went to Location and hit 'Save'. I ended up creating the records manually. Unless I did something wrong, this might be something that was overlooked in the transition code?
Just wanted to mention in case this is an actual issue!