When pushing an entity with a piston, sometimes (at "power of 2" coords?  2^n) it doesn't get moved the amount it should, and a lot of extra decimal numbers start appearing. If the bug gets triggered multiple times, the entity acumulates those errors.
video: cumulative error.mp4

and if you trigger a reload of the entity's NBT (like with "/data merge {some nbt}") and then push the entity again, the error disappears (the value in Pos gets fixed, but the collision problems shown in resulting problems.mp4 seems to remain).
video: update nbt.mp4

video showing an issue due to this bug: resulting problems.mp4

test world: MC-202027.zip