I discovered an awesome bug. If you make 7 spawns, each spawn makes heroes, the heroes will start to tremble and won't attack. Anyone knows how to fix this>?

Can they move around the map fine?

No, they cannot. They get stuck.

Sounds like your task object trigger. You need to set the location and then set the area, in that order.

Thank you. But if I set first the area and then the location, why it gets bugged?

You have to do it viceversa, First set the Location and then the Area or it's like you didn't put an Area and all the units of that player will be tasked where you put the Location and if it is more than 1 Tasker of course they stuck because they're trying to move to 2, 3, 4, 5, etc... different places at the same time.

Its just an AoC bug.