For a while now, I keep seeing multiple inventory item icons being messed up. For example, all glass looks like unstained glass, beds' textures are missing, etc.

The potions' colors are completely mixed up, as ashown in the screenshot, as well as the missing textures of the beds.

Steps to reproduce

1. Open a world (can even affect servers on non-beta for me...) 
2. If in creative, open creative menu, and scroll to mentioned items, or in other modes, obtain an affected item
3. Item icon is glitched

Expected results

Textures are correct, beds have their icons, potions arent muxed around, stained glass panes have their colored look

Observed results

Textures are glitched. Beds have missing textures, all glass and glass panes look like the default colorless glass (panes), potion colors/textures are swapped around.

Additionally, somehow, this bug seemed to somehow be fixed when I was using lots of behavior/resource packs, although that fact would be expected be reversed, instead of little to no packs having messed up textures.