Put the summary of the bug you're having here

What I expected to happen was...:
that i will just be on it and not float above it...

What actually happened was...:
When i jumped on a pressure plate that was on a fence ( as a table ) i floated above it was in survival

Steps to Reproduce:
1. Place or find pressure plate ( i found mine in a village )
2. Jump on it
3. Done you are floating ( i am... )

this does only happen when the plate is on a fence i also only tested acasia plates