Summary
Using MythicMobs dev build 3870, after a player connects to the server, many errors are thrown relating to getting entities async. This is causing lots of issues, such as /mm mobs killall no longer working, and lots of duplicate invisible mobs spawning with the spawners function.
Steps to reproduce
This issue only happened once I updated my MythicMobs to the latest dev build. No config files were changed. Simply joining the server with the latest build causes this issue.
Current behavior
Mobs are duplicated but invisible, can't kill mobs using /mm mobs killall.
Intended correct behavior
No errors in the console and proper loading of mobs.
Server log file
Debug log snippet
https://pastebin.com/C58KBWtb (removed the startup log + some of the debug after the error messages due to size limit on pastebin)
Proposed fixes
Change async to sync for the getEntities method.