mrHalfer
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psatkha, It simply writes "The client's game database checksum does not match the server's game database checksum. Check the installed mods and patches. Error code 0.2.0". The console is silent, and the game doesn't indicate which file it doesn't like.
I didn't have time to look into which file is causing the problem. Since GameMechanics\Creature\Creatures\Neutrals\Creature_441.xdb contains links to all other creature files, the game could be complaining about any of them.
I'll find the time to test it; it's quite convenient to do on 2 laptops.
Added 1 hour 41 minutes ago
It turned out to be faster than I thought.
The file is \Characters\Creatures\Neutral\H5A0\Adamant_Golem-arena-cast.xdb
The line is the error; the identifier cannot be zero. I put 8506789A-17C0-4CCF-B3B1-22229B282222 there, and it worked.
I don't know how UIDs for heroes are usually generated; I temporarily copied it from a neighboring file, changing the last digits.
I didn't have time to look into which file is causing the problem. Since GameMechanics\Creature\Creatures\Neutrals\Creature_441.xdb contains links to all other creature files, the game could be complaining about any of them.
I'll find the time to test it; it's quite convenient to do on 2 laptops.
Added 1 hour 41 minutes ago
It turned out to be faster than I thought.
The file is \Characters\Creatures\Neutral\H5A0\Adamant_Golem-arena-cast.xdb
The line is the error; the identifier cannot be zero. I put 8506789A-17C0-4CCF-B3B1-22229B282222 there, and it worked.
I don't know how UIDs for heroes are usually generated; I temporarily copied it from a neighboring file, changing the last digits.