RonBaker4MVP

The report you attached seems to be the same issue, yes. I still experience the issue in the latest release.

You have to add the packs to world_resource_packs.json and world_behavior_packs.json in the folder for the world. I think you might also have to have the packs in the resource_packs and behavior_packs folders in the folder for the world. It's easier if you make a world in minecraft bedrock itself and copy it in into the worlds folder in the BDS folder. Make sure the packs are folders and not in .zip , .mcpack , or .mcaddon files.
Note: I think this only works for non-marketplace packs.

The issue persists regardless of what audio settings or devices I use. The clip is from a single player world. It happens on all worlds, and is worse when lag occurs, like on realms. Only footstep sounds are affected.

I added a video. The video was taken on an Xbox Series X, and I had to lower the quality for it to meet the size requirement. You should be able to notice the audio issues though. I tried reproducing the bug on Windows 11 and it was still present, but it is way more noticeable on Xbox.

efficiency still doesn't work 1.20

I think I figured out what causes it. If you use a custom resource pack, and have access to the files for it, check the manifest.json file. If it uses format version 1, the trader llamas are invisible. If it uses format version 2, everything is normal. I just tested this by changing a format 1 pack to format 2, and the llamas were visible again.