Topic category: Bugs and solutions
Basicly with Overlays, they glitch the life bar, hunger bar, and experience bar. This was discovered with my attempt at making navigational tools:
It seems to replace the health bar and hunger bar with cached information from the overlay, and replaces the EXP bar with @ABCDEFGHIK (The @ is messed up due to low experience count. The level count is probably messed up too.