In the latest minecraft beta version 1.16.200.52

Yesterday I saw some bugs , when I was going o pillager outpost for a bad omen effect and I was flying with my mending elytra the world was not generating and the texture of salmon fishes are like splash potions of poison, and when I'm in creative mode when I use / give @p an item everything was with the texture of stone.

I have a screenshot of the salmon in hotbar and salmon when I throw it on ground.