Hi! It's hard to explain but, I did managed to get shape multiplier level 12 at the endgame as the game was lagging and I kept pressing upgrade.
I have operator level 185, and wanted to upgrade to level 3, there was no reaction, like no hover animation on upgrade button.
Then the game crashed, I reopen and I have like 3 or 4 research points and fully upgraded multiplier.
My save kinda stopped working I tried to use backup but something is off as well.
I think the main reason it was lagging was because I created a looooooot of trains while doing CPU intensive work in the background (I was zipping and partitioning with all the threads a 23 gb file - and it seemed the maybe it upgraded all at once, research points went below 0 and crashed?
Let me know please if you need any more data. I love the game ❤️