Didn't think the mods I used would be the problem, when I had this bug in 2.0.0 b3 I only had the replay mod, and valkyrien warfare installed. If valkyrien warfare isn't the problem then it's probably the replay mod + shaders or another one of the mods i'm using that I wasn't in 2.0.0 b3.
Don't know how to put a spoiler in if you can anyways, so here: ---- Minecraft Crash Report ----
WARNING: coremods are present:
ValkyrienWarfareBase Mod Compatibility Hack (VW Mod Compatibility.jar)
MalisisCorePlugin (malisiscore-1.10.2-4.2.9.jar)
ItemPatchingLoader (ItemPhysic Full 1.3.4 mc1.10.2.jar)
TickrateChanger (TickrateChanger-1.0.8.jar)
CreativePatchingLoader (CreativeCore v1.6.11 mc1.10.2.jar)
LoadingPlugin (replaymod-1.10.2-2.0.0-b4.jar)
ValkyrienWarfareBase CoreMod (Valkyrien Warfare .85b.jar)
Contact their authors BEFORE contacting forge
// Oops.
Time: 12/23/16 11:20 PM
Description: Exception in server tick loop
java.lang.NoClassDefFoundError: net/minecraft/entity/Entity$1
at net.minecraft.entity.Entity.func_85029_a(Entity.java:2482)
at net.minecraft.entity.Entity.func_70020_e(Entity.java:1715)
at net.minecraft.entity.EntityList.func_75615_a(EntityList.java:175)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_186053_a(AnvilChunkLoader.java:597)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_186050_a(AnvilChunkLoader.java:524)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadEntities(AnvilChunkLoader.java:474)
at net.minecraftforge.common.chunkio.ChunkIOProvider.syncCallback(ChunkIOProvider.java:96)
at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:94)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:115)
at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:86)
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:132)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:298)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:174)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:197)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)
at java.lang.Thread.run(Thread.java:745)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- System Details --
Details:
Minecraft Version: 1.10.2
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 280971680 bytes (267 MB) / 798715904 bytes (761 MB) up to 8576565248 bytes (8179 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx8G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.32 Powered by Forge 12.18.2.2151 Optifine OptiFine_1.10.2_HD_U_D4 23 mods loaded, 23 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAA mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAA FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.2.2151.jar)
UCHIJAA Forge{12.18.2.2151} [Minecraft Forge] (forge-1.10.2-12.18.2.2151.jar)
UCHIJAA creativecoredummy{1.0.0} [CreativeCoreDummy] (minecraft.jar)
UCHIJAA itemphysic{1.3.0} [ItemPhysic] (minecraft.jar)
UCHIJAA replaymod-replay{1.10.2-2.0.0-b4} [Replay Mod - Replay] (replaymod-1.10.2-2.0.0-b4.jar)
UCHIJAA replaymod-simplepathing{1.10.2-2.0.0-b4} [Replay Mod - Simple Pathing] (replaymod-1.10.2-2.0.0-b4.jar)
UCHIJAA replaymod-extras{1.10.2-2.0.0-b4} [Replay Mod - Extras] (replaymod-1.10.2-2.0.0-b4.jar)
UCHIJAA replaymod-recording{1.10.2-2.0.0-b4} [Replay Mod - Recording] (replaymod-1.10.2-2.0.0-b4.jar)
UCHIJAA replaymod-online{1.10.2-2.0.0-b4} [Replay Mod - Online] (replaymod-1.10.2-2.0.0-b4.jar)
UCHIJAA replaymod{1.10.2-2.0.0-b4} [Replay Mod] (replaymod-1.10.2-2.0.0-b4.jar)
UCHIJAA replaymod-compat{1.10.2-2.0.0-b4} [Replay Mod - Compatibility] (replaymod-1.10.2-2.0.0-b4.jar)
UCHIJAA replaymod-render{1.10.2-2.0.0-b4} [Replay Mod - Render] (replaymod-1.10.2-2.0.0-b4.jar)
UCHIJAA blockbuster{1.4.3} [Blockbuster] (blockbuster-1.4.3-1.10.2.jar)
UCHIJAA creativecore{1.5.0} [CreativeCore] (CreativeCore v1.6.11 mc1.10.2.jar)
UCHIJAA LunatriusCore{1.1.2.38} [LunatriusCore] (LunatriusCore-1.10.2-1.1.2.38-universal.jar)
UCHIJAA malisiscore{1.10.2-4.2.9} [MalisisCore] (malisiscore-1.10.2-4.2.9.jar)
UCHIJAA malisisdoors{1.10.2-5.1.6} [MalisisDoors] (malisisdoors-1.10.2-5.1.6.jar)
UCHIJAA Schematica{1.7.8.153} [Schematica] (Schematica-1.10.2-1.7.8.153-universal.jar)
UCHIJAA tickratechanger{1.0.8} [Tickrate Changer] (TickrateChanger-1.0.8.jar)
UCHIJAA valkyrienwarfare{0.85a} [Valkyrien Warfare] (Valkyrien Warfare .85b.jar)
UCHIJAA valkyrienwarfarecombat{0.1} [Valkyrien Warfare Combat] (Valkyrien Warfare .85b.jar)
UCHIJAA valkyrienwarfarecontrol{0.3b} [Valkyrien Warfare Control] (Valkyrien Warfare .85b.jar)
Loaded coremods (and transformers):
ValkyrienWarfareBase Mod Compatibility Hack (VW Mod Compatibility.jar)
ValkyrienWarfareBase.CoreMod.CompiledHack.ValkyrienWarfareTransformerHack
MalisisCorePlugin (malisiscore-1.10.2-4.2.9.jar)
net.malisis.core.util.chunkcollision.ChunkCollisionTransformer
net.malisis.core.util.chunkblock.ChunkBlockTransformer
net.malisis.core.renderer.transformer.MalisisRendererTransformer
net.malisis.core.renderer.icon.asm.TextureMapTransformer
net.malisis.core.util.clientnotif.ClientNotifTransformer
ItemPatchingLoader (ItemPhysic Full 1.3.4 mc1.10.2.jar)
com.creativemd.itemphysic.ItemTransformer
TickrateChanger (TickrateChanger-1.0.8.jar)
me.guichaguri.tickratechanger.TickrateTransformer
CreativePatchingLoader (CreativeCore v1.6.11 mc1.10.2.jar)
LoadingPlugin (replaymod-1.10.2-2.0.0-b4.jar)
ValkyrienWarfareBase CoreMod (Valkyrien Warfare .85b.jar)
ValkyrienWarfareBase.CoreMod.ValkyrienWarfareTransformer
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'