3x Protector case (full of mixed items)
1x Waterproof Bag (full of cans)
3x Wooden log (type used for building)

Items placed in world (not buried) ~12:55 CET, ran outside to chop wood for a fire. Cut down three trees and collected firewood, returned to Wooden Lodge building west-northwest of Komarovo with three loads to craft fire for the night.

Server went offline and on rejoining I was back outside and the above items were missing, as were the models of the trees I had chopped down.

Firewood collected and placed inside building still present.