When running a large amount of energy from a draconic network into an energy P2P Tunnel, over a Quantum connection, back into a draconic network, the server crashes on:

• Changing energy provision/generation on either of the connected quantum rings.

• Loading into the game near a quantum ring.

• AE2WTLib 1.12.2-1.0.34

• ae2stuff-0.7.0.4

• Enigmatica 2 modpack 1.75b

• Forge 1.12.2-14.23.5.2847

• Multiplayer Forge server

To Reproduce
Build as laid out in the summary. Remove an acceptor. Crash.

Description: Ticking block entity

java.util.ConcurrentModificationException
at java.util.LinkedHashMap$LinkedHashIterator.remove(Unknown Source)
at appeng.me.cache.EnergyGridCache.extractProviderPower(EnergyGridCache.java:316)
at appeng.me.cache.EnergyGridCache.extractAEPower(EnergyGridCache.java:248)
at appeng.parts.p2p.PartP2PTunnel.queueTunnelDrain(PartP2PTunnel.java:407)
at appeng.parts.p2p.PartP2PFEPower$InputEnergyStorage.receiveEnergy(PartP2PFEPower.java:146)
at com.brandon3055.brandonscore.lib.EnergyHelper.insertEnergy(EnergyHelper.java:110)
at com.brandon3055.draconicevolution.blocks.energynet.tileentity.TileCrystalDirectIO.func_73660_a(TileCrystalDirectIO.java:51)
at net.minecraft.world.World.func_72939_s(World.java:1838)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Unknown Source)

Duplicate of #3800

Similar issue on my server. I've seen a lot of issues marked as duplicate of #3800 but where's the fix?