All mobs are frozen in place (still have moving models, like flapping wings) and I can't affect anything. I can't kill anybody, including myself, and even not use chat and the "/" commands.

So this happened to me twice. In my first world, I spawned an ender dragon because I read she flies around the coordinates 0 ? 0. So when I tried to kill her with bow and arrow from above, the game suddenly froze. Notably, I tried to shoot through water. After this happened, the dragon still moved the wings, but stayed at the same position all the time. Then I noticed I can't shoot arrows, neither hurt any other mobs that are frozen as well. Ultimately, I couldn't kill myself and spawn at my bed, and I even couldn't use the chat or use "/" commands. This caused me to loose that world. What concerns me more though is that it happened AGAIN, and it was only my friend (we play in an online Multi as two people) running away from my wolves as I accidentally hit him, but suddenly the wolves froze and I couldn't kill myself, the wolves etc.. we were just in a woodland mansion and it shocks me the game did the same bug for a relatively normal case. Thank you for reading and please consider solving this bug, as it breaks worlds whose files I've tried to restore, without success. Btw, I was playing on a Huawei ALE-L21