"The elder" bugged/stuck and auto-running when sailing

Hi Admins,

When I were fighting the elder for the first time he got stuck and stopped attaking. I tried getting closer and he only attacked me a few times but then stopped again.
Some information that maybe could help: I was alone and using fire arrows.

The second "bug" is that when you are sailing if you press "Q" and start auto-running you can't stop unless you leave the rudder.

I'm sorry if there's some grammatical errors but English is not my home language. Thanks for reading.