Affects Version/s: Minecraft 19w04b
Fix Version/s: None
OS: Windows 10 64bit
Java: JRE 1.8.0_201
Hand in first-person-perspective is moving when teleported.
This bug exists on every 1.14 snapshot so far (18w43a - 19w04b).
Seems to occur randomly and rather rare, but more often while you are moving.
The "/execute"-command could cause this issue.
I did't get this bug by executing the normal "/tp"-command.
I used the command "/execute as @a[distance=..3] at @s run tp ~ ~ ~-5"
in a repeating command block ("Always active").
I also didn't get it by executing the command as a player.
But maybe I just didn't tested it out long enough,
so my speculations might be wrong.