**System Information**
Operating system: Linux-4.15.0-70-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: GeForce 610M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 390.116
**Blender Version**
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-20 14:27, hash: `rB26bd5ebd42e3`
Worked: (optional)
**Short description of error**{F8157099}
i was working on some big animation multiplate takes but because of NDA i can't uploud the full file however after deleateing all stuff from file.. and just adding cube and makeing full copy of scene with single cube the issiue happens. The file is broken.. a fresh new file works fine. i am not sure what made this file to sudenly not work correctly.
**Exact steps for others to reproduce the error**
make FULL COPY of scene. and as u will see all items in it will have user count 0 and will apear as ophran data.