I cannot walk on un-solid height blocks (Soil, Enchant. Tables, etc) without getting tp'd back immediately. This eventually leads to a cycle of flying kicks which you may not be able to escape. I'm on 1.11.2 if this helps.
Downgrade to 1.8. This is present everywhere on the server if you're using 1.9+ Also, if you're stuck and cannot get out and are continuously being kicked, tell a staff member or use ender pearls/break the block.
@SkillzMC_TV explained the situation. Downgrade to 1.8 if this happens. It does the same lily pads loll.llloololo