Too much memory was used bug

Lately i get a lot of reports throughout our apps (all apps) with:

This seems to be random, because after reloading it just works the way it should.
Any idea why this happens?

Started like 3-4 months ago.

Hi Johan,

About 4 months ago we added the message you are seeing in case the error stack trace was empty. Before this time however, did you receive no reports at all or did you receive reports that showed an empty error stack trace?

Do you get these reports on specific jobs that could indeed have a high memory footprint, or also on simple jobs?

Well i get two mails a day more or less from end-users that press report problem.
So not sure if they are all high memory, but i do know that if they try it again it works just fine.