Every time i try to play on a Modpack or with 2 or more Texture Packs on my Minecraft, this weird glitch happens after some time playing. Some times i just press F3 + T to make the Texture Packs reset and the bug stop, but, some times, i press F3 + T and the bug still happening. Some times my game even CRASH when the bug starts. This makes me very sad, because it makes very hard to play well with Mods or Texture Packs. Please try to fix this issue. It would make me very happy