Looks like aai function to split vehicles with multiple weapons into multiple vehicles with a single weapon don't like your tank

I should know, thanks for the advice

Not really sure there's much to do about this. If another mod wants to mess around with SBT's internals and in so doing messes it up... ¯\(ツ)/¯
I can flag it as incompatible, but then if some parts of AAI do work and people still want to use those, it would be inconvenient for them.

Well, just put an warning on mods description