custom map

Are there any important considerations when creating an island for an Animal Hunt event on a custom map?
Please let me know if there are any important factors to watch out for, such as sea level height, biome type, farming zones, etc.

I have created the island and defined the animal spawn positions.

However, the animals do not move from their spawn points.
The event ends as soon as even one animal is killed.
On standard maps, the same config works correctly, but on the custom map, it doesn't function properly.

Iam only using custom maps.. And this plugin is runing non stop correctly.. With at least 4 place where event is. So what map are You using that doesnt mater at all.. You can use what ever map.. Only important thing is how You make your zones(in zone mamager) . And to make correct config file.  Correct spawn points.. So yea, check those things. Map isnt problem. 

Edit : did you added Island on map true rust edit by yourself?

It You did maybe You didnt made it correct.. 

Just make sure that place is not ocean topology, Rest doesnt matter.