I didn't see on the related post any mention about the "sawtooth" pattern and so on. Do you have confirmation that both cases have the same root cause ?

For information, it happened again (see precisions below + log file) :

{D69276B0-55C8-4E25-87BC-AD28E6B8F15E}.png

This time again, I wanted to ...

New-ish save (only red and green flasks), about 3h in.

Shortly after placing 2 radars (the 2 first one of this map), I wanted to check how close spawner were (by opening the map with a click on the minimap), and then I wanted to check if some of them ever absorbed any pollution (as they were near ...