(Using Xiaomi Redmi Note 4G)
Last time I tested out the MCPE 0.11.0 build 2 boat, but it works badly.
In my first try, I got into a boat and stuck in a directon (left/right)
If you force to turn it to other direction, it will glitched out, badly.
Sometimes work perfectly, sometimes not.
Hope Mojang can fix this.
VIDEO: vid.me/vdid
Also sometimes if you close a world, it will force exit.
Report: pastebin.com/L7yLFd3W
If you have not already, I recommend performing a search before submitting a report.
This issue was reported previously as MCPE-8198, comment your experience there!
Also, please limit your reports to one bug per ticket. More than this makes it difficult to sort through and fix the bugs in question.