Invisible block entities and items disappearing

basically, chests and beds become invisible and when a chest becomes invisible it loses all of the stuff inside, it is on a server on version 1.21.2-pre3

 

edit: we udpadet from the previous snapshot where it did not happen

 

edit 2: the trial chamber in the area did not spawn all mobs

 

edit 3: here's the drive link to the video showing off everything of the bug: https://drive.google.com/file/d/1aT9NYlzLNI-ybUtjSgqjblKtUO-HkITX/view?usp=sharing

 

edit 4: here's the video of the last bugged chest remaining with f3 https://drive.google.com/file/d/1222o-r_lCBvVi_uO82qVhXDjWvh7JuKB/view?usp=sharing