Item travel in water on ice long enough they glitch out.

What I expected: the items being normally in the water at the lowest point possible, because they sink.

What happened: A few different things everytime:
1) They flicker, like when there is big amounts of lag.
2) They jump extremly high (maybe 2-3 maybe more blocks in the air), but not like a smooth jump, it's really glitchy.
3) They are invisible.

There might be more effects that take place that I have missed. All items are actually in the spot they should be at, they teleport back/be visible when I pick them. So, if an item seems to be 2 blocks up, and the location of the "real" item is close to me. The item 2 blocks up teleport to the "real" location and into my inventory.

Sidenote: I'm sorry if this is a dublication. I tried to search for words like "glitchy items, items, buggy items" and it took too much time to look trough all the searches. The search/catalog system must improve if you want it to be easier to us users to find the bug easier. :/