[GlobalPlague]

If this Zombie Plague Special 4.4 is based on ZPA 1.6.1, then it may contain unfixed errors. I checked the changelog, but i didn't find the bugfixes from ZPA 1.6.2.

You can transfer the bufixing codes from the unofficial ZPA 1.6.2 to ZPS 4.4. Here is the thread where you can find the bugfixes i'm talking about: https://zppv.boards.net/thread/947/z...fficial?page=4