Hello Neighbor Mod Keeps Crashing

Hi, I’ve been working on a Hello Neighbor mod for a good month or so and recently I keep getting this same crash whenever my Neighbor opens a door in my level, but the strange part is it isn’t even consistant. He can sometimes last 2 minutes before he makes the editor crash or 2 seconds. I tested him in the official testing level called “NeighborBasics” and he was absolutely fine but in my level he isn’t. I then created a new level and made a ton of box brush walls with doors in them and he opened and closed them just fine. Went back to my actual mod and then it crashed again. I even duplicated the level, still crashed. Made a new level and copied and pasted everything from the one I have been using. Crashed instantly. I’ve come to the conclusion that there is something that the Neighbor doesn’t like and I don’t know what could cause it… Here is the error message I keep getting:

Assertion failed: false [File:D:\MK_1_5_0\HelloNeighbor\Source\HelloNeighbor\Gameplay\Sosed\Behaviors\Base\BehDoor.cpp] [Line: 363]
UBehDoor::OnAnimNotify(), m_eState == BS_OPEN, unknown animation

0x00007ffc47cda388 KERNELBASE.dll!UnknownFunction ]
0x00007ffc2b046850 UE4Editor-ApplicationCore.dll!UnknownFunction ]
0x00007ffbd9f362fc UE4Editor-Core.dll!UnknownFunction ]
0x00007ffbd9ec51db UE4Editor-Core.dll!UnknownFunction ]
0x00007ffb8966e47d UE4Editor-HelloNeighbor.dll!UBehDoor::OnAnimNotify() [d:\mk_1_5_0\helloneighbor\source\helloneighbor\gameplay\sosed\behaviors\base\behdoor.cpp:391]
0x00007ffb8966d640 UE4Editor-HelloNeighbor.dll!UBehavior::NotifyAnim() [d:\mk_1_5_0\helloneighbor\source\helloneighbor\gameplay\sosed\behaviors\base\behavior.cpp:236]
0x00007ffb896dfca8 UE4Editor-HelloNeighbor.dll!ASosed::OnAnimNotify() [d:\mk_1_5_0\helloneighbor\source\helloneighbor\gameplay\sosed\sosed.cpp:755]
0x00007ffb896001ae UE4Editor-HelloNeighbor.dll!UNativeAnimNotify::Notify() [d:\mk_1_5_0\helloneighbor\source\helloneighbor\gameplay\helpstruct.cpp:55]
0x00007ffba1987821 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba1986c5b UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba1947694 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba1cdc1a1 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba2571f58 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba1cff918 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba1cda149 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba1ce397f UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba1ce6060 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffbd9d51f92 UE4Editor-Core.dll!UnknownFunction ]
0x00007ffbd9d52456 UE4Editor-Core.dll!UnknownFunction ]
0x00007ffbd9d66d25 UE4Editor-Core.dll!UnknownFunction ]
0x00007ffba2a75b04 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba2a84d92 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba21887e4 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba2194003 UE4Editor-Engine.dll!UnknownFunction ]
0x00007ffba0367335 UE4Editor-UnrealEd.dll!UnknownFunction ]
0x00007ffba0c5f666 UE4Editor-UnrealEd.dll!UnknownFunction ]
0x00007ff69b7f5cbd UE4Editor.exe!UnknownFunction ]
0x00007ff69b805b3c UE4Editor.exe!UnknownFunction ]
0x00007ff69b805bba UE4Editor.exe!UnknownFunction ]
0x00007ff69b813dac UE4Editor.exe!UnknownFunction ]
0x00007ff69b815aaa UE4Editor.exe!UnknownFunction ]
0x00007ffc4a613dc4 KERNEL32.DLL!UnknownFunction ]
0x00007ffc4ae43691 ntdll.dll!UnknownFunction ]

If anyone has any suggestions please send them my way as that would be much appreciated, thank you! :wink: