Maybe someone can help me figuring out the cause of this problem.
We had a database on NAV 2017 build 18609 that was running fine for a few days. Then suddenly all code in events didn't execute. The Event Subscriptions page was empty! Of course this was a big problem.
It was fixed by recompiling all objects and restarting the service.
But the big question is: What caused it???
Does anybody know?