Rocks and trees in east main river area dissapear with one hit

#1

Rocks and Trees in the east main river before the swamp, dissappear with one hit of the pick or axe. very little yield since only one hit.

#2

Area bugged it east of scavengers berth, to north of salestich camp

#3

I was getting this too tonight. It did the same with trees, bushes, rocks, mobs I killed. and no matter what tool I used; pick, skinning knife, sickle, etc