I have a Queueable job en queued by a custom trigger and the Queueable job makes REST API call to an external system. When I monitor the job, it used to start processing in couple of minutes but in one occurrence it took ~30 minutes to start its processing. I am unable to replicate this issue.
Can someone shed some light on this? What could be the reasons for the delay?
For me it sounds like one off use case.
Thanks for your inputs!