Escape from Vranik possible, Story stops, Game bugs
I managed to escape from Vranik after my quest to scout the camp was completed before speaking with Erik.
It is possible to jump outside from the gatehouse of Vranik before speaking with Erik or before speaking with Erik the second time after meeting the swordsmaster.
The quest does not seem to concern this: your horse is not marked as your horse, fast travel is not possible, running to Rattay to talk to Sir Radzig or Herrn Hanusch shows no new dialog options than before entering Vranik.
V 1.3.4 | PC | Windows 10