Ugly sinking animations

[Capa]

I've seen quite a few occasions lately where if a ship really sinks fast by tipping up vertically, as it drops down it sometimes "bumps" into the floor even if the sea is far deeper than a ship-length, then resumes sinking. It's really jarring to see every other ship bounce like a toy in 1000m+ ocean.

Is this known and is there anything that can be done about it? Using 1.4b.