PgAgent Jobs randomly failing to start

Hello,

We were hoping someone could help us with a PgAgent job issue we've been
having. We're using PgAgent to schedule batch scripts (that run a compiled
matlab exe file) on a Windows 2019 server and are having issues making the
jobs reliably start. Basically the jobs either start perfectly fine or
fail within a few microseconds (see attached images of the job statistics
and step statistics). When a job fails to run I have not been able to find
any error log or console output.

We're currently working around this by scheduling several consecutive times
the job should run at (e.g. 6:00am, 6:05am, etc) but even this schedule
fails on occasion and is obviously not a great solution! I've also tried to
force the batch script to output a log file, but sadly nothing is output
when the job fails.

Thanks for any help you can provide
Piers Lillystone