I am getting the same black screen on android and windows. I found out that the issue seems to be in the save file field SNPAvgCost, if I set that to 0 then the game loads
(edit) did the same on Android and the game loaded.
Uk device, load from both in game and main menu, stays black no matter how long I wait.
If i start a new game and save straight away during the intro, i can load that file no problem.
Tried SNPavgcost to 0 but didn't seem to help
Just did a quick test. Its definitely the stock market. Interacting with it causes the issue with not being able to load the save.
I'll bulletproof the stockmarket feature, Thanks for the crazy thorough findings!!!
