Affects Version/s: Minecraft 1.14.3, 1.14.4
Fix Version/s: None
Put the summary of the bug you're having here
What I expected to happen was...:
I thought I could crouch if I press shift when I stand on a shulker.
What actually happened was...:
I couldn't crouch and I was stuck in crouching if I crouched on the shulker.
Steps to Reproduce:
1. Sneak on a shulker
2. When you stand on top of it release the shift button