Today, the spreadsheet-based triggers on two of my Google Sheet projects stopped working. These projects have been running smoothly for years, are completely unrelated and have not been recently updated. I examined one of them and found the code targeted by the trigger to be working fine. I unregistered the trigger and re-registered it to no avail. There are no related errors logged in the Stack Logger. I created a new Google Sheet and created some spreadsheet-based triggers for it. They worked as usual. What might be happening?
