Just killed another survivor between the airfield and Vybor. After taking all the good stuff I continued on my way only to discover about 3 min. later that most of the things I took off of him were gone out of my inventory, incl. NVGs, SG5-K, two batteries and a heavily modified FX-45.
This isn't the first time gear I took off of someone after killing him has despawned.

Version: 1.05.152699
Server: EU-DE 9248