WHY DOES MY BOAT DISAPPEAR

This is Bedrock and NOT Java

I was playing a multiplayer world with a friend of mine (not by realms or servers, by xbox live),

I wanted to ride a boat, and when I got out of it (from driving it), it turned completely invisible. I couldn't break it, see it, or get on it. My teammate, however, could see it.

I tried this in a world by my self, and it was still disappearing. 

If I got out of a boat from driving it, I can't see it. 

When my teammate drives the boat, he couldn't see it, but I could.