After further playing my attempts to recreate this event have been unsuccessful. Further more i believe now that it was not the fault of the game itself rather it was a lake of memory. As a large number of programs had opened in the background. Thank you for your time.
I have encountered a similar bug. I was testing half slabs and slime blocks on sticky pistons. The slab isn't touching the slime block or the piston it shouldn't be moved. I have encountered this in 1.14.2 pre-release 3.
[media]Im still encountering this bug in 1.14.2 prerelease 3. When i right click a bed while on a mule i bounce up and down nearly a block until im ejected from the bed at sunrise.
The issue is due to jumping directly from 1.7.10 to 21w44a. After further testing the invisibility and hitbox issue can be fixed by placing other fences next to the glitched ones.