(First of all, I apologize if I break any forum rules, I never used a forum before.)
I'm trying to create a mod pack for a community server with my friends, and I've been testing the mods in single player to see if everything works correctly. At first everything seemed to work fine, but when I'm in the world for a few minutes the animals, enemies, villagers, Etc. They seem to freeze in place, I can move but I can't open chests, ovens, interact with villagers or hit enemies.
I'm playing on version 1.16.5
The version of forge that I use is 36.2.29
Video to summarize the problem:
If you need any more information let me know in advance, thank you very much :D
First thing to check, remove Optifine, if the issue stops then it was optifine. If it still continues you may have better luck (faster response) if you join the CF Discord and ask in the Game-Support channel.