Put the summary of the bug you're having here

What I expected to happen was...:
The turtle would go onto a sand block, flop around, and a few sand particles would fly out before the egg pops out.

What actually happened was...:
The turtle tried to flop, but was not releasing sand particles. A sand block was placed under it, and a crap ton of sand particles now fly out, and no egg pops out. As far as I can tell, it won't come out.

Steps to Reproduce:
1. Mate two turtles.

2. Wait for the pregnant turtle to go to a sand block and watch it fail at the edge of a sand block.

3. Place a sand block under it.

4. Sand chaos.

UPDATE:

Touching the turtle until it pops out the egg ends the bug.

ANOTHER UPDATE:

I am hypothesizing that maybe the turtle climbing a previous egg onto a corner sand block may be the thing triggering this bug.