> This time I couldn't even make a lobby as it threw an "ATTRIBCACHE_CORRUPT_MAP".
It's a generic error indicating there's something wrong with setup of the game variant - anything that relates to attributes, player slots etc.
> P.S. If anyone is interested, the map is called "Recruiters" and it is unlocked on EU and US.
I did take a quick look and a possible cause could be the fact that the map's default variant overrides certain attributes for player slots - like commanders, logo index.. try to get rid of this.
Also the way you're using player 15 could possibly have something to do with it. Player 15 is intended to be a special player that defaults to "Hostile" type, like player 0 defaults to "Neutral". You seem to have changed it to "computer". This shouldn't cause that error though.. but that's definitely something I'd check too - try to change it back to "hostile" and reduce team size to 2 in variants.
In case you actually need that player to be of "computer" type, then I'd recommend using another player slot for it.
Ultimately, you can try removing your custom variant completely, and remaking it - there might be something set incorrectly that editor is not showing. Variants and attributes are pretty complex systems, and prone to bug out when working on a map made on older versions of SC2.
btw. You might want to join SC2Mapster Discord server, it's far more active than this forum.