Describe the bug
After using sleep back, picked up my backpack, then backpack is disappeard.

video clip
https://youtube.com/clip/UgkxceGjJmtkRAS9_kPf4Ws6F5uUgtbc_h4K

Required informations (please complete the following information):

• Mod version: [1.18.2-7.1.1]
• Mod Loader: [Forge]

Does it happen everytime?

no.
i did several times, only last one, it is disappeard.

https://youtu.be/T2TAOTW1vXg?t=1849
i crafted the backpack at this point.
then I was using it as usual.
It was a sudden event.

I finded it now!!
It dropped behind the house.
I apologise for the fuss.