Mob Spawning in Nether issue

Sponge Sponge Support
1

I use many mods on my server. Here is the list.

minecraft{1.11.2} [Minecraft] (minecraft.jar) 
mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
FML{8.0.99.99} [Forge Mod Loader] (forge-1.11.2-13.20.0.2282-universal.jar) 
forge{13.20.0.2282} [Minecraft Forge] (forge-1.11.2-13.20.0.2282-universal.jar) 
dmonsters{1.15} [Deadly Monsters] (1.11.2_deadly_monsters_1.15.jar) 
bettercombatmod{1.4.0} [Better Combat] ([MC 1.11.X] BetterCombatMod 1.4.jar) 
examplemod{1.0} [examplemod] ([MC 1.11.X] BetterCombatMod 1.4.jar) 
abyssalcraft{1.9.4-pre-3} [AbyssalCraft] (AbyssalCraft-1.11.2-1.9.4-pre-3.jar) 
csb_armorstand{1.0.2} [Armor Stand Configurator] (ArmorStandGUI-1.11-1.0.2.jar) 
babymobs{1.5.4} [Baby Mobs] (BabyMobs-1.11.2-1.5.4.jar) 
bettersprinting{1.1.9} [Better Sprinting] (BetterSprinting  MC-1.11.2  v1.1.9.jar) 
biomesoplenty{6.1.0.2238} [Biomes O' Plenty] (BiomesOPlenty-1.11.2-6.1.0.2238-universal.jar) 
blockarmor{2.4.3} [Block Armor] (BlockArmor-1.11.2-2.4.3.jar) 
chameleon{1.11.2-3.1.0} [Chameleon] (Chameleon-1.11.2-3.1.0.jar) 
chiselsandbits{13.10} [Chisels & Bits] (chiselsandbits-13.10.jar) 
cnoapm{1.0 by Dot_Silver} [Craftable Notch Apple Mod - MCVersion 1.11.2] (cnoapm-mcv1.11.2.jar) 
cosmeticarmorreworked{1.11.2-v1a} [CosmeticArmorReworked] (CosmeticArmorReworked-1.11.2-v1a.jar) 
extraalchemy{0.3.2-beta} [Extra Alchemy] (extraalchemy-0.3.2-beta.jar) 
flatcoloredblocks{mc1.11-5.2} [Flat Colored Blocks] (flatcoloredblocks-mc1.11-5.2.jar) 
overlord{2.3.7} [Overlord] (Overlord-1.11.2-2.3.7.jar) 
guideapi{1.11.2-2.1.1-52} [Guide-API] (Guide-API-1.11.2-2.1.1-52.jar) 
llibrary{1.7.6} [LLibrary] (llibrary-1.7.6-1.11.2.jar) 
iceandfire{1.1.0} [Ice and Fire] (iceandfire-1.1.0.jar) 
inventorypets{1.4.9.5} [Inventory Pets] (inventorypets-1.11.2-1.4.9.5.jar) 
ironchest{1.11.2-7.0.19.803} [Iron Chest] (ironchest-1.11.2-7.0.19.803.jar) 
iymts_mod{1.11.2-0.1.0} [iYAMATO's Mod] (iYAMATOs_mod-1.11.2-0.1.0.jar) 
journeymap{1.11.2-5.4.6} [JourneyMap] (journeymap-1.11.2-5.4.6.jar) 
mercurius_updater{1.0} [mercurius_updater] (MercuriusUpdater-1.11.2.jar) 
moredyes{@VERSION@} [More Dyes] (MoreDyes-1.11-1.1.1.jar) 
hellbound{1.0} [HellBound] (NetherBound 1.1.jar) 
netherbound{1.1} [NetherBound] (NetherBound 1.1.jar) 
netherportalfix{1.0} [NetherPortalFix] (NetherPortalFix_1.11-4.3.1.jar) 
roguelike{1.6.6} [Roguelike Dungeons] (RoguelikeDungeons-1.11.2-1.6.6.jar) 
com.superzanti.serversync{2.6.14} [ServerSync] (serversync-2.6.14.jar) 
simpleoregen{3.4.5} [Simple Ore Generation] (SimpleOreGeneration-3.4.5 mc 1.11.2.jar) 
flammpfeil.slashblade{mc1.11-r9} [SlashBlade] (SlashBlade-mc1.11-r9.jar) 
storagedrawers{1.11.2-4.2.7} [Storage Drawers] (StorageDrawers-1.11.2-4.2.7.jar) 
tammodized{0.9.2} [TamModized] (TamModized-1.11.2-0.9.2.jar) 
trashslot{7.4.5} [TrashSlot] (TrashSlot_1.11.2-7.4.5.jar) 
vending{1.4.3} [Vending] (vending-1.11.2-1.4.3.jar) 
villagermarket{1.0} [Villager Market] (villagermarket-0.2-HF.jar) 
voidcraft{0.19.6} [VoidCraft] (VoidCraft-1.11.2-0.19.6.jar) 
weaponcaseloot{5.0.3-beta} [WeaponCaseLoot] (weaponcaseloot-1.11.2-5.0.3-beta.jar) 
wearables{1.0.2} [Wearables] (wearables-1.0.2.jar) 
witherskelefix{1.7.0} [Wither Skeleton Tweaks] (Wither Skeleton Tweaks-1.11.2-1.7.2.jar) 
worldedit{6.1.6} [WorldEdit] (worldedit-forge-mc1.11-6.1.6-dist.jar)

My server works correctly without Sponge-Forge. But It happened if I add Sponge-Forge ( only one file named “spongeforge-1.11.2-2282-6.1.0-BETA-2360.jar” )

  1. Many mobs ( Mainly, iYAMATO’s mod mobs) spawn in the fortress. Normally, only zombie pigman, blaze, wither-skeleton, magma cube. Other mobs didn’t spawn in the fortress. They spawn out of the fortress. They know where is our spawn point.

  2. I disabled iYAMATO’s mod mobs but wither-skeleton was not found. ( I tried to find around 2hours )

Which problem is this? Sponge-Forge? or Other Forge-Mods?

2

In vanilla minecraft, Wither skeletons will only spawn in an area defined as part of a Nether Fortress. These areas can change if you add or remove WGen mods. They might appear in a freshly-discovered fortress. SpongeForge shouldn’t be preventing them from spawning, but the only way to be sure is to test it on its own.

3

So I said. Wither-Skeletons can spawn in Fortress without Sponge-Forge easily. But They don’t spawn or very much rare spawn rate with Sponge-Forge. and, Other mobs spawn definition is wrong with Sponge-Forge I think. Is it Sponge-Forge Bug, isn’t it?

4

If you did, that part was not clear. The question remains, do wither skeletons spawn with just SpongeForge (and no mods)? They did the last time I tried out a Sponge server nether.

Also, what does witherskelefix{1.7.0} [Wither Skeleton Tweaks] do?

5

Problems are not about only wither-skeleton.

it is not “wither-skeleton can pop or not”, it is “mods or native spawn system is broken by sponge-forge” .

Wither Skeleton Tweaks
https://minecraft.curseforge.com/projects/wither-skeleton-tweaks?gameCategorySlug=mc-mods&projectID=255902

6

Then file a bug report on the repo, if you’re this certain it’s SpongeForge.