Constant Random Crashes involving NavmeshObjectManager

[primem0ver]

This is a new development that I haven't had before until recently. It is happening all the time (every 5-10 minutes of game-play or so). The crashes are not consistent in their timing or place. I have added some mods in the past few days but most of them are paper map mods and those pictured below.

 

 

A few more added after that but that was after the crashes started appearing.

 

The crashlog kept in NetScriptFramework almost always has "NavmeshObjectManager " as the last call in the callstack. Sometimes a null address appears above that as shown below:

Probable callstack
{
  [0]   0x0                                               
  [1]   0x7FF73E7A72BC     (SkyrimSE.exe+4672BC)          NavMeshObstacleManager::unk_4671D0+EC
  [2]   0x7FF73EC65DBA     (SkyrimSE.exe+925DBA)          BSTEventSink<TESCellFullyLoadedEvent>::Handle_925D00+BA
  [3]   0x7FF73E605BBE     (SkyrimSE.exe+2C5BBE)          unk_2C5BB0+E
  [4]   0x7FF73E7A73CC     (SkyrimSE.exe+4673CC)          NavMeshObstacleManager::unk_467390+3C
  [5]   0x7FF73E5A1125     (SkyrimSE.exe+261125)          TESObjectCELL::unk_261090+95
  [6]   0x7FF73E7A6410     (SkyrimSE.exe+466410)          NavMeshObstacleManager::unk_466300+110
  [7]   0x7FF73E980867     (SkyrimSE.exe+640867)          Job_Path_update_640820+47
  [8]   0x7FF73EF74C48     (SkyrimSE.exe+C34C48)          BSJobs::JobThread::Func1_C34930+318
  [9]   0x7FF73EF4D6BD     (SkyrimSE.exe+C0D6BD)          StartAddress_0_C0D680+3D
  [10]  0x7FFEDA927614     (KERNEL32.DLL+17614)           
  [11]  0x7FFEDB0026A1     (ntdll.dll+526A1)              
}

This is REALLY odd. Calling a method at location 0 in the memory should NEVER happen. I get that in C++ method pointers can be used to store call locations. Could this be an issue with one of the downloaded address libraries? But if so, why would it be called from a Skyrim method?

 

There are no relevant objects that seem consistent either. One esp has appeared as relevant in two crashes (out of around 10) but that is all in regarding consistency. The only thing consistent is the NavMeshObstacleManager... a Skyrim object (and its methods). The common crashes page seems to be gone now from Nexusmods but a similar post on another Skyrim site that seems to have the same info doesn't mention this issue. As an FYI I am using Skyrim SE version 1.5.97. I started my game in this version and Skyrim AE is not compatible with all my current mods.

 

Any help figuring this out would be appreciated.

 

[primem0ver]

Hmm... seem to have missed a possible cause in the relevant objects. One that sometimes gets buried and did notice before but forgot when I posted my issue. Might be related to Occlusion.esp generated by xLodGen. I will investigate this further buy disabling that since it is unnecessary to my game.

[primem0ver]

Yup. That was it.