* Fix the bug that the mushroom farm in the cave stops growing.

* 修复洞穴蘑菇农场生长停滞的bug。

* Fix mermking buff for wurt in cave. (NOTE: if you are in a cave and the MermKing is on the ground, you need to return to the ground first to activate the buff)

* 修复鱼人王对沃特的加成无法在洞穴生效的bug。（注意，如果你在洞穴，鱼人王在地面，需要先重新回到一次地面才会激活加成效果）

* 修复进入洞穴的几秒内游戏帧率下降的问题。
* Fix the problem of fps drop when entering the cave.

* 修复地面不刷新废墟猪的问题。
注意：如果你已经击杀了洞穴梦魇猪，你需要重新上下一次洞穴，才能触发废墟猪的生成倒计时。

* Fix scrappy werepig failed to spawn on surface.
NOTE: If you have already killed the cave Nightmare Werepig, you will need to re-enter the cave and back to surface, to trigger the spawn timer of the Scappy Werepig.

* 修复上下洞穴引发的报错。

* Fix game crash after going out of cave.