Checked and tested a bit:
Cement mixer seems to be LOD bad shaping, but I need to test it more.
Canned food piles seems to be the Occluder.
LOD seems fine. Needs even further testing to confirm.
Also, the bread toaster has the exact same problem as the food piles.
Both show inconsistent results with the LOD, so it appears to be an occlusion problem.
Also, when you plant a bunch of trees in a line, say, 30-50, and you close the game and you start again they dissapear in sections (a bunch of them dissapear depending on how you look at them and then reappear if you look in the right angle). This one is the occluder and fairly easy to reproduce.
It is unknown at the moment if loging back in increases the occluder problems in those specific items (piles,toaster, ceiling lamps?) .
Edit: all of this in Low settings.