Somehow my game has started to freeze all of the sudden, every time when I open the save.
I disabled Black market 2 once already, and the save worked again.
I reloaded it later to experience the same freeze.
I have no idea, why. I tried picking up accumulators, disabling selling/buying automating, picking up all mod's entities, but it keeps freezing.
Picture of other mods in my save:
https://www.dropbox.com/s/mt0yrths2sieej7/Factorio%20freeze%20bug.png?dl=0
(in case if some mods are incompatible)
This setup MAY work as long as I close the game/reboot the computer (I don't know, just speculating) and play the game later, since both freeze times have happened after reopening the game. Maybe there's something to that as well?
EDIT: Tried to continue without accumulators, so by only selling and buying objects. Didn't work: the game froze eventually.