Lifter mechs are just standing around

[bjaminwiz]

Recently, my colony grew to a point where I started noticing lag in people moving around, animal movement, etc. Generally, this doesn't hugely impact me, but around the same time I started noticing that my lifter mechs don't actually work any more. If I click on one, it just says 'Standing'. I can draft them and manually move them around, and I can change their group, but when they are supposed to be working (and there is plenty of hauling to be done) they just... stand there. I have had lag issues with pre-1.4 versions but not until my colony gets to around 40 colonists, right now I'm only at about a dozen.
Any help on how I can get my lifters productive again? I even tried to disassemble them and then re-create them, but once they get out of the gestrator they still just stand there.
I even noticed this with my colonists doing the same thing on occasion, where they are just standing, and I can manually get them to do something but then once they are done they just go back to 'Standing'. But for the colonists, its temporary, they might only do it for an hour or two in game time, then they get back to it, but the mechs are really stuck.

Mods list:
Harmony
HugsLib
Allow Tool
Awesome Inventory Forked
Better Vanilla Masking
CM Color Coded Mood Bar [1.1+]
Colony Manager
Common Sense
Dinosauria
Go Explore!
Loading In Progress
Pick Up And Haul
SRTS Expanded
Use Bedrolls
Where is my weapon?
Defensive Positions

[HentaiVictim]

I've run into something similar with lifters, it'll carry raw materials but corpses, clothing, weapons it just ignores.

[rcwills]

make a new storage zone and set it to everything low priority. If they start working again you know you ran out of storage space

[The Blind One]

引用自 rcwills：

make a new storage zone and set it to everything low priority. If they start working again you know you ran out of storage space

I always make a single 'anything' storage zone with low priority in my recreation / dining area.

Why?

So that if my storage ever overflows or I haven't set the storage system properly it'll pop up right in my view as soon as its a problem and I can assign proper storage for the items I forgot to assign a zone for.

Later in the game I will actually put that in the hallways of a storeroom but in the beginning it's slab dab in the middle of my rec and dining room.