I have restarted as well Steam as my computer. No change.
My language setting is english, so if it works for everyone else in English, why would it change anything to swap in chinese or something?
I did start chekcing the cache, but it seemed to be a very lengthy proces. I abandoned it after 15 minutes, but ofc it's the only way I'll just have to leave it at that.
One thing just struck me, though: I was on-line last night when the stream - and possibly the patch - was released. Could that have something to do with it?
And I'm not worrying about next time....it's this time: It doesn't update, meaning I can't play the game! If I don't find a solution, there's not even going to be a next time.
I tried to look at Steam forums, but found no advice on this situation.
The Zis is only 'good' if you use them correclty AND have enough of them.
I have found, that a simple rule seems to Work: 1 Zis needed per vehicle class. I.e. ACs etc can be defeated by 1 Zis. Medium tanks require 2, heavy tanks 3.
You still need to position them properly in advance. Or else they are worth zero.
What ever this formula is fair from a blance point of view or not, I don't quite know. But as the game is, this is what you need if Zis is your only AT.