Events set to trigger on stage or completion do not seem to be running. No errors appear in console. Stages and quests complete as expected aside from this. Running version 2.7.3 on Spigot 1.10.

Mouse - I have been using quests for a long time and Ive only ever been able to get an event to fire at the very beginning of a quest OR at the very end. Ive never been able to get an event to fire in the middle of a quest at the beginning or end of a particular stage. This issue has been around for awhile. THERE IS a workaround for this-- split the quest into 2 quests-- wherever you want the in between event to fire. You can do this by rewarding the first part of the quest with the command /questadmin give (name of the second part of the quest). This will force the player to take the next quest in line as soon as the first quest is complete and then you can set an initial even to fire where you wanted it as the second quest starts.

I have actually gotten events to fire at the beginning of a quest stage without any issues. Rather than trying to have events trigger at the end of a stage, I just have a new stage start and the event triggers then.