There seems to be a bug where if you sprint into stairs after falling slightly, you clip through the block in front of it. If there are more blocks behind said block, then you start shaking inside the blocks. I have provided an 2 images of builds that specifically have this issue.
To reproduce the bug, you need to run starting from the block directly to the back-right of the stairs (but slightly towards the hole), then run to the blocks in front of the stairs.
(Screenshots from 0.1.28, though the bug also occurs in 0.1.30)
