After creating a new world and using word edit for a schematic the server simply crashes after a few seconds.
Mods present : Pixelmon 4.2.3 - Custom NPCS 1.8.9 - SpongeForge-1.8.9_4.1.0_B_1285
Plugins : WorldEdit - Essentialcmds
CrashReport : http://pastebin.com/24wx6qwL


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it depends on the size off the schematic
if it crashes ones just rejoin if possible or restart the server
it should appear
the server crashes due to an overload rendering to manny blocks at once
Oh no the schematic is very small , it shows up correctly . After 10-20 seconds the server just crashes . Btw after the schematic is loaded i can freely move and break the blocks , i don’t have issues with that . The server just goes down .
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then just restart and you should be fine
still even if there are less blocks the server starts to lag wich makes it overload 
So you are telling me that a 50 block schematic will make the server crash (I mean THE crash , i need to restart) every time , its non sense 

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imagine you opening 50 different games on your pc i gues your pc would blow up right? the same thing happens to the game if it has to load in 50 different blocks up > down > Left > Right dos’nt matter
also your server crash has to do with how many gigs you allocated to it
I have another server on the machine i just ran a test with WE , didn’t crash at all , (3.5 million blocks sphere ) i suppose the mods are the issue or sponge
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1 your server has to load all entitities wich are: NPC’s wich are: Pixelmon, Animal’s,Trainers, shorther said: Mobs wich are modded and vanilla then it has to load in all the blocks you spawned in by //schematic load and //paste
i know what i’m talking about
i have ran a runescape server 3.5 Mill blocks you said? i had to copy paste (runescapes - Alkharid) wich was only arround 2Mill blocks
I then saved it as a schematic for a different server on the other server where i didnt had any mods and only WorldEdit i did //schematic load and //paste wich made the server crash so nope mods aint got to do with this 
50 blocks is a tiny schematic. 552
I’m guessing something else is wrong.
java.util.ConcurrentModificationException
UCHIJAAAA pixelmon{4.2.3} [Pixelmon] (pixelmon-1.8.9-4.2.3-universal.jar)
Pixelmon is currently infamous for this issue. They are modifying things when they shouldn’t be.
If it were open source I would attempt to debug it, but as they decline to share their source code it makes it incredibly hard to debug this.
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