I'm pretty sure that you have a bug/glitch in the boat mode. This video was posted on Facebook and I just tested my Evo and have exactly the same problem. This makes boat mode unusable so I hope you can push an update through quickly.
@Terry77
We are not affiliated with Autel in any way, we are just a community of enthusiast Autel users who like to share information to the community. So if you have found a bug\glitch you should relay your findings to Autel Support at the email or phone numbers listed in post #1
Unfortunately, Autel does not change anything if you forget to inform them of the problems you encounter.