[Crash] Unstable IC2 version?

I’ve been using SpongeForge with IC2 for a few days.

  • Forge{12.18.3.2254} [Minecraft Forge] (forge-1.10.2-12.18.3.2254-universal.jar)
  • sponge{1.10.2-2254-5.2.0-BETA-2241} [SpongeForge] (spongeforge-1.10.2-2254-5.2.0-BETA-2241.jar)
  • IC2{2.6.180-ex110} [IndustrialCraft 2] (industrialcraft-2-2.6.180-ex110.jar)

Sometimes, when a player goes to some new places (need to generate new chunks), the server crashes and will keep crashing if that player login again.

I found that I can help that player by resetting his or her position to somewhere that has already been generated. Or I can delete the level_sponge.dat and level_spong.dat_old.

I looked online but it seems nobody is having trouble with IC2…
So I wonder if the IC2(180) that I’ve been using has serious bugs that cause this issue…

Here are all the mods I used.

  • mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)
  • FML{8.0.99.99} [Forge Mod Loader] (forge-1.10.2-12.18.3.2254-universal.jar)
  • Forge{12.18.3.2254} [Minecraft Forge] (forge-1.10.2-12.18.3.2254-universal.jar)
  • spongeapi{5.2.0-SNAPSHOT-a3257a0} [SpongeAPI] (minecraft.jar)
  • sponge{1.10.2-2254-5.2.0-BETA-2241} [SpongeForge] (spongeforge-1.10.2-2254-5.2.0-BETA-2241.jar)
  • bamboomod{Minecraft1.10.2 var3.0.0.12.2} [bamboomod] (Bamboo-3.0.0.12.2.jar)
  • cyclicmagic{1.10.15} [Cyclic] (Cyclic-1.10.2-1.10.15.jar)
  • flexiblelogin{0.12.3} [FlexibleLogin] (FlexibleLogin.jar)
  • IC2{2.6.180-ex110} [IndustrialCraft 2] (industrialcraft-2-2.6.180-ex110.jar)
  • infernalmobs{1.7.2} [Infernal Mobs] (InfernalMobs-1.10.2.jar)
  • nucleus{0.26.1-S5.1} [Nucleus] (Nucleus-0.26.1-1.10.2-S5.1-plugin.jar)
  • permissionsex{2.0-SNAPSHOT-b147} [PermissionsEx] (PermissionsEx-Sponge.jar)
  • redprotect{7.0.0} [RedProtect] (RedProtect-Sponge-7.0.0-b3.jar)

Here is the crash report:

I tried setting the retrogenCheckLimit to 0, but it doesn’t change anything at all.

I myself can cause the bug by using a Elytra and flying pass the chunks that generated (flying faster than the server can provide).
In the single player mode, I can fly as fast as I can without causing any crashes.

Here is the server.properties:

Any thoughts are welcomed!