Most people getting texture glitches.
If you want to play Blockland properly, you can no longer use custom textures.
Like Squideys and Manty's Textures, they forget up how shaders look and how the player looks, so if you want to play Blockland Properly, make sure your entire Blockland folder is NOT Read Only.
Yes the Textures looked nice back then, but now they forget up the game.
I may not be 100% Accurate about this but from what I have seen people with custom Brick textures have odd looking shaders.