I found it

[glacial raven]

I have found the error, using the cartographer ants, the game doesn't run too well, cartographers have this buff: while less fog, more velocity, untill they reach 200%. "According to the description", in the infinite mode it doesn't affect and they can reach velocitys that the game can't quite manage. That's why the saving error always appeared in my games, because while you open to see the progress, it crashed because of the velocity of the ants and the math that it had to do.

The following video shows the velocity that some ants can reach in infinite mode. A good solution would be changing the last buff for other more interesting thing, I'm not a programmer or any of that, but the problem is easy to understand.

[potent sage]

1. The description describes as "more fog, more speed", not less fog.
2. The Cartographers "dancing" inside because your potato phone can't handle such speed. The remedy is to click any building, or anything that slows the game, then they can finally proceed. Repeat it as necessary. Whether the issue is your potato phone or the game not optimized or both, it should be fixed.
3. To further support no.2 the thing also can cause your warriors using Blitzkrieg perk to dance on the entrance and can be remedied in the same manner.

[glacial raven]

Was it necessary to insult my phone? It's a shame, I love the game, but people like that as moderators... It makes me think they don't have good people helping.

Also, I have the game in Spanish because I speak Spanish, and to communicate I have to use a translator, and sometimes my girlfriend translates the messages or texts I send her, and into Spanish That's what it says: less fog, more speed.

[potent sage]

I didn't insult anything... because it's a fact. It's either the phone can't handle such speed(thus it's called potato phone and there is no insulting on that) or the game itself not optimized or both...

I'm explaining how did that happen and if you can't take my explanation or my remedies, then that is up to you, I have done my part. Now it's up to do your part or the dev's part, or both.

[glacial raven]

I'm sorry, I misunderstood your words, thought you were insulting my phone calling it potato, didn't get the joke, you're pretty chill, sorry again
Frends?

[potent sage]

Forgiven. 😊
I also apologise for not using more appropriate words. English in not my best language or rather communication is not my best thing but I'm trying. 😫

But about the Cartographer, this is the description in English. As for me, it means more fog, more speed.

[potent sage]

Anyways, I'll check the spanish translation and if there's any error in translation, I'll communicate with the devs about it. 😊