I couldn't figure out why my server wasn't loading anything in Ultra Space, but after a little bit of digging, it's because I disabled nether/other dimensions. I enabled it, however, I noticed that the useSystemTimeForWorldTime config option wasn't being applied, even though it was set to true. It did, however, fix the issue of traveling to and from Ultra Space - before nothing would load and I would just see the red fog, eventually forcing me to disconnect. With both enabled, the useSystemTimeForWorldTime just doesn't work, but if I set nether/dimensions travel to 'false', the useSystemTimeForWorldTime works. Help D:

I forgot to put in what shows in my console/logs when: nether/dimension travel is disabled and useSystemTimeForWorldTime is enabled and working. It seems to happen every time the Minecraft time syncs with system time (systemTimeSyncInterval), or seconds between time syncs.

[19:24:01] [Server thread/ERROR] [FML]: Cannot Hotload Dim: 2
java.lang.IllegalArgumentException: Could not get provider type for dimension 2, does not exist
at net.minecraftforge.common.DimensionManager.getProviderType(DimensionManager.java:164) ~[DimensionManager.class:?]
at net.minecraftforge.common.DimensionManager.initDimension(DimensionManager.java:252) [DimensionManager.class:?]
at net.minecraft.server.MinecraftServer.func_71218_a(MinecraftServer.java:832) [MinecraftServer.class:?]
at com.pixelmonmod.pixelmon.TimeHandler.changeTime(TimeHandler.java:31) [TimeHandler.class:?]
at com.pixelmonmod.pixelmon.TickHandler.onServerTick(TickHandler.java:122) [TickHandler.class:?]
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_139_TickHandler_onServerTick_ServerTickEvent.invoke(.dynamic) [?:?]
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) [ASMEventHandler.class:?]
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182) [EventBus.class:?]
at net.minecraftforge.fml.common.FMLCommonHandler.onPostServerTick(FMLCommonHandler.java:266) [FMLCommonHandler.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:712) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_131]
[19:24:01] [Server thread/ERROR] [Pixelmon]: java.lang.NullPointerException

Thank you for this report. We apologize for taking so long to get to this ticket. Due to the age of this ticket and that this is for a much older version I will be marking this ticket as expired, if this bug is still occurring in the latest version (8.1.2 as of writing this) then please make a new ticket.