I've tried the same route with a normal activity, and the same happened, then i tried with explore route: with some paths the game loaded, but again infinite loop with other paths.
In log everything is normal.
Now i've tried the last supporter release that is from that time when the game worked correctly, but same happened... infinite loop.
I've reverted all of the MSTS content changes that i made in the last 2 days, nothing helped...
What is this? Can i detect the infinite loop with visual studio debug mode?