I spent a very large amount of time trying to trouble shoot this problem and I found a solution, and for the sake of admins every where I thought I'd share.
~What Is Happening?~
I Have discovered that Thaumcraft mobs have a nasty habit of getting stuck in limbo. My servers whole mob cap consisted of various Thaum mobs, most of which where wisps. This could also happen if you have any other mob related mod installed
~The Fix~
1. Go get BukkitForge I recommend this version for any 1.4.7 FTB (I specifically use ultimate) Click Me
2. Put BukkitForge in your core mods folder [It only needs to be on the server]
3. Start the server for BukkitForge can do the first time set up and file/folder creation
4. Go and get essentials for bukkit [this is the version I recommend --> click me]
5. Put essentials into the plugins folder that has been made by bukkit forge after the first time run.
6. Restart the server to get essentials loaded up
7. NOTE:: The entity IDs I use are the ones from Ultimate, I am not sure if they are the same for all versions. If you do not use ultimate you may want to check your Thaumcraft.cfg to confirm entity IDs for the mobs. If you know your entity IDs are the same and/or have checked to make sure start running the killall command.
/killall 206 [wisp]
/killall 205 [angry zombie]
/killall 210 [giant angry zombie]
/killall 212 [fire bat]
Remember the numbers after kill all are the entity IDs, if you have another mob related mod such as mo' creatures installed feel free to try the kill all on it's IDs.
8.Just to be safe run the killall for creepers, zombies, and all the other vanilla mobs [you can do those by name] but for me there was only 2 things killed that were vanilla the rest of the mob cap was filled out by the thaumic mobs.
9. Enjoy the fact that you have mobs again
Hope this helps some admins who are feeling frustrated
~What Is Happening?~
I Have discovered that Thaumcraft mobs have a nasty habit of getting stuck in limbo. My servers whole mob cap consisted of various Thaum mobs, most of which where wisps. This could also happen if you have any other mob related mod installed
~The Fix~
1. Go get BukkitForge I recommend this version for any 1.4.7 FTB (I specifically use ultimate) Click Me
2. Put BukkitForge in your core mods folder [It only needs to be on the server]
3. Start the server for BukkitForge can do the first time set up and file/folder creation
4. Go and get essentials for bukkit [this is the version I recommend --> click me]
5. Put essentials into the plugins folder that has been made by bukkit forge after the first time run.
6. Restart the server to get essentials loaded up
7. NOTE:: The entity IDs I use are the ones from Ultimate, I am not sure if they are the same for all versions. If you do not use ultimate you may want to check your Thaumcraft.cfg to confirm entity IDs for the mobs. If you know your entity IDs are the same and/or have checked to make sure start running the killall command.
/killall 206 [wisp]
/killall 205 [angry zombie]
/killall 210 [giant angry zombie]
/killall 212 [fire bat]
Remember the numbers after kill all are the entity IDs, if you have another mob related mod such as mo' creatures installed feel free to try the kill all on it's IDs.
8.Just to be safe run the killall for creepers, zombies, and all the other vanilla mobs [you can do those by name] but for me there was only 2 things killed that were vanilla the rest of the mob cap was filled out by the thaumic mobs.
9. Enjoy the fact that you have mobs again
Hope this helps some admins who are feeling frustrated