OrangeFish627

It is because a texture pack u are using is outdated

I have a texture pack that works perfectly on 1.20.73 but after the 1.20.80 update, it also has the error square

I have another one that doesn't change textures. it only shows health of mobs and doesn't have this glitch

this is a bedrock screenshot in case you want to know

Its when a texture pack is outdated

I have a texture pack that worked perfectly on 1.20.73 but after the update to 1.20.80, it also had the error square at the top