A batch apex class which is scheduled to run daily has been failing lately. It either shows Completed, with 0 total batches (which isn't right if it really ran as expected), or it shows Failed, with an odd error message (just "job xxx failed"). However, if I run it manually (via dev console, using same batch size) it completes as expected.
Here's the apex jobs listing:
The two recent runs showing 7 batches processed are the ones I launched manually. All the others (starting at 6 am) are the failed scheduled runs.
Interestingly, there is also a job shown from much earlier in the year, showing status = Queued. Could that be interfering w/ the scheduled runs somehow? (ignore this)
Any advice on what I should look into here?