I've been playing on a bedrock 2 player realm with my friend for about a month while using some texture packs. The texture packs have been working perfectly fine until I went on this morning to find out that the packs weren't working. I restarted my minecraft many times and tried reapplying the packs but none of them worked. The packs works on another realm I'm on and all my worlds. It turned out that my friend (owner of the realm) had the same problem as me. They tried to fix it but it didn't work. Another realm I was previously on also had the same problem.