I had the very same problem. After getting some help from John I have bit by bit replaced the Vanilla textures with the texture pack I used before and figured out that the game crashed as soon as I replaced the bed textures. So I removed the bed textures, the bed icon and the bed line in the item_textures.json file. As soon as that happened it worked again without any crashes. I assume it has to do with the renaming of the old bed to red_bed and adding the new colors we didn't have before in that edition.
I had the very same problem. After getting some help from John I have bit by bit replaced the Vanilla textures with the texture pack I used before and figured out that the game crashed as soon as I replaced the bed textures. So I removed the bed textures, the bed icon and the bed line in the item_textures.json file. As soon as that happened it worked again without any crashes.
I assume it has to do with the renaming of the old bed to red_bed and adding the new colors we didn't have before in that edition.