Upgrading a small Moodle site to 3.9 and suddenly the activity chooser is not working. It just hangs with a spinner.
Turning off the chooser to see the dropdown menus when editing mode is turned on also throws an error.
This may not be a bug, but I would appreciate any guidance in tracking it down. Might be a database value corrupted but I can't determine which table to look into to confirm it.
Also, I know the component isn't "filepicker" but I didn't see "activity chooser" anywhere.