It seems that since 1.6 has broke the cleaning up the game space. I have one location where four bandits have been laying for several months six or more months.

Then several containers treasure chest included will not respawn and when I dump useless items to me in a container of fails to clean up.

I had one instance where I dropped several hundred pounds if useless gear in a chest in the boss level chest at the Robbers Gorge and I go to loot the chest and I notice all of the weapons and armor I dumped in there with some new gear respawned with it.

All if this is not good with the save game bloat.

i noticed some irregular clean up as in some times bodies clean up and others dont