Hi, the following was noticed on a realm bedrock 1.8.1:

I throw or get thrown a splash potion and the client simply crashes (window closes without a warning, suddenly). This has happened twice to me now.

This happened with a splash potion of speed that i threw at myself and also when a witch threw a poison potion at me. I cannot see the potion explode; all i hear it the sound of the glass bottle shattering and the window closes. 

My character got the speed effect when i logged back from that one time. For the witch however, i logged back on at spawn without stuff, which means i died during the crash (probably harming potion from witch i suppose. This means my character stayed in the game during the crash and i got attacked; as before this is on a realm).

This doesn't seem to happen on specific potions, because i was able to throw a second speed potions afterwards without any problems. It does that sometimes and crashes the game, the rest of the time the potions are thrown and explode correclty (without crashing the game).

I don't have any visuals to share because the window simply crashes without any message or error.

Hope that helps somehow,

Antoine