Sponge Forge breaks Immersive Posts connected textures

[Exymat]

I am currently running

• SpongeForge version: 7.1.10
• Forge version: 1.12.2 - 2847
• Java version: 8
• Operating System: Win10

• Plugins/Mods: Mods (151): Minecraft, Minecraft Coder Pack, Forge Mod Loader, Minecraft Forge, SpongeAPI, Sponge, AE2 Stuff, AI Improvements, Actually Additions, Advanced Hook Launchers, AppleCore, AppleSkin, Applied Energistics 2, Aroma1997's Dimensional World, Aroma1997Core, Attribute Fix, AutoRegLib, Auxilium Equivalence, BD Lib, Baubles, Better Bedrock, Better Builder's Wands, Better Combat Rebirth, BiblioCraft, Biomes O' Plenty, Blood Magic: Alchemical Wizardry, Botania, Bountiful Baubles, Chameleon, Chest Transporter, ChickenChunks, Chisel, Chisels & Bits, Chunk Pregenerator, CoFH Core, CoFH World, CodeChicken Lib, Construct's Armory, Cooking for Blockheads, CreativeCore, CreativeCoreDummy, Cucumber Library, Dense Metals, Dynamic Surroundings, Ender IO, Ender IO Applied Energistics Conduits, Ender IO Base, Ender IO Conduits, Ender IO Integration with Forestry, Ender IO Integration with Tinkers' Construct, Ender IO Integration with Tinkers' Construct, Ender IO Machines, Ender IO Open Computers Conduits, Ender IO Powertools, Ender IO Refined Storage Conduits, EnderCore, EnderStorage, Exchangers, Expanded Equivalence, Extra Cells 2, Extra Utilities 2, Fast Leaf Decay, FastFurnace, FastWorkbench, FoamFix, FoamFixCore, Forestry, Forge Endertech, GasConduits, GeographiCraft, Grappling hook mod, Gravestone Mod, Guide-API, Hammer Core, Immersive Cables, Immersive Engineering, Immersive Petroleum, Immersive Posts, Industrial Foregoing, Infernal Mobs, InstantUnify, Integration Foregoing, Inventory Tweaks, Iron Backpacks, Iron Chest, JEI Bees, JourneyMap, Just Enough Energistics, Just Enough Items, Large Ore Deposits, Level Up! Reloaded, LittleTiles, LittleTilesCore, MalisisCore, MalisisDoors, Mantle, McJtyLib, Mekanism, Mekanism: Generators, Morpheus, Mystical Agriculture, Nature's Compass, NuclearCraft, OreExcavation, OreExcavation Integration, OreLib Support Mod, Pam's HarvestCraft, Phosphor Lighting Engine, PlusTiC, Project EX, ProjectE, ProjectE Integration, Psi, Quark, RF Lux, Railcraft, Realistic Terrain Generation, Reborn Core, Redstone Flux, Shadowfacts' Forgelin, Simply Jetpacks 2, Simply Light, Soul Shards Respawn, SpongeForge, Storage Drawers, Surge, Tesla Core Lib, Tesla Core Lib Registries, Thaumcrafft Inventory Scanning, Thaumcraft, The Betweenlands, Thermal Cultivation, Thermal Dynamics, Thermal Expansion, Thermal Foundation, Thermal Innovation, Tinker's JEI, Tinkers Tool Leveling, Tinkers' Construct, Too Many Efficiency Losses, TorchMaster, Torcherino, Tree Chopper, Trinkets and Baubles, UniDict, Unloader, Useful Nullifiers, View EMC, Waila, WanionLib, What Are We Looking At

Issue Description

There's an addon to Immersive Engineering called Immersive Posts. It adds custom height posts using a block where right clicking with differents fences creates a post the height of fences added, and blends them (i.e create a connected texture post) according to the original Immersive Engineering posts. However, when combined with sponge forge, posts textures no longer blends, and instead of a smooth post, we get a repeated 1 fence height post. Related : https://github.com/TwistedGate/ImmersivePosts/issues/10#event-3084282410