I noticed many many bugs - it's as if the software is a beta version.
Invisible ships have been mentioned.
Crashes for no reason.
Shallow waters - I noticed that some ships can't move because of the shallow water.
In one tourist campaign, the mission starts with the boat underwater.
I can't see the full page chart - I just see loads of random symbols.
The sounds come and go at random.
I was towing a vessel and another boat sailed through the tow cable.
It's very disappointing - so I'm seeking a refund.