When I was exploring the map, I found a Killer Bee Hive on the ocean (As you can see in the following screenshots). When I moved close to it, the game crashed and showed an "Out Of Memory" message. I tried many times, the game crashes every time when I try to go closer to that killer bee hive.
I packed and uploaded the save file of this map. Please find out why and fix this bug, thanks!
Start the game using the map I uploaded, look for this killer bee hive (it's among the numerous beehives, but it's easy to find because it's on the ocean), move towards it, and the game crashes.