Hi, as you an see in this video: you can glitch out of the map and fly to the end of the jump quest very fast. Thankfully, Malady recognizes you as a cheater, but it can ruin some runs through the quest if it happens by accident as there's no way to get back up other then leaving.
Please check this thread as the bug you're describing here has already been fixed: https://royals.ms/forum/threads/patch-notes-20-10-16.80931/ Please update your files and after that it should not be replicable anymore.