Update on the issue, started a new map validated the files, reinstalled the mod. Played for some hours, no issues then started up the game again, and it happen again.

Think a tamed ( maturation in progress ) Doedicurus is the culpit now. Becouse when i use the command to kill it, the error does not happen. So seems like the bug can happen to any dino(?) that are in maturation progress

Here is another error report

Ark version 312.47

ShooterGame.exe!FAnimNode_ModifyBone::ModifyBonesEvaluateBoneTransforms() (0x00007ff7b661a252) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnode_modifybone.cpp:175]
ShooterGame.exe!FAnimNode_ModifyBone::EvaluateComponentSpace() (0x00007ff7b661a007) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnode_modifybone.cpp:159]
ShooterGame.exe!FAnimNode_ConvertComponentToLocalSpace::Evaluate() (0x00007ff7b660d8bf) + 50 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodespaceconversions.cpp:32]
ShooterGame.exe!FAnimNode_SaveCachedPose::Evaluate() (0x00007ff7b6646986) + 55 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnode_savecachedpose.cpp:57]
ShooterGame.exe!FPoseLink::Evaluate() (0x00007ff7b660bc37) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodebase.cpp:179]
ShooterGame.exe!FAnimNode_ConvertLocalToComponentSpace::EvaluateComponentSpace() (0x00007ff7b660dac9) + 50 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodespaceconversions.cpp:78]
ShooterGame.exe!FComponentSpacePoseLink::EvaluateComponentSpace() (0x00007ff7b660bcb7) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodebase.cpp:213]
ShooterGame.exe!FAnimNode_MultiFabrik_Dinos::EvaluateComponentSpace() (0x00007ff7b663c9fb) + 16 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnode_multifabrik_dinos.cpp:30]
ShooterGame.exe!FComponentSpacePoseLink::EvaluateComponentSpace() (0x00007ff7b660bcb7) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodebase.cpp:213]
ShooterGame.exe!FAnimNode_SkeletalControlBase::EvaluateComponentSpace() (0x00007ff7b660d534) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodeskeletalcontrolbase.cpp:47]
ShooterGame.exe!FAnimNode_ConvertComponentToLocalSpace::Evaluate() (0x00007ff7b660d8bf) + 50 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodespaceconversions.cpp:32]
ShooterGame.exe!FPoseLink::Evaluate() (0x00007ff7b660bc37) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodebase.cpp:179]
ShooterGame.exe!FAnimNode_BlendListBase::Evaluate() (0x00007ff7b660eb1a) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnode_blendlistbase.cpp:139]
ShooterGame.exe!FPoseLink::Evaluate() (0x00007ff7b660bc37) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodebase.cpp:179]
ShooterGame.exe!FAnimNode_BlendListBase::Evaluate() (0x00007ff7b660eb1a) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnode_blendlistbase.cpp:139]
ShooterGame.exe!FPoseLink::Evaluate() (0x00007ff7b660bc37) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodebase.cpp:179]
ShooterGame.exe!FAnimNode_ApplyAdditive::Evaluate() (0x00007ff7b660dd79) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnode_applyadditive.cpp:51]
ShooterGame.exe!FPoseLink::Evaluate() (0x00007ff7b660bc37) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodebase.cpp:179]
ShooterGame.exe!FAnimNode_BlendListBase::Evaluate() (0x00007ff7b660eb1a) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnode_blendlistbase.cpp:139]
ShooterGame.exe!FPoseLink::Evaluate() (0x00007ff7b660bc37) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animnodebase.cpp:179]
ShooterGame.exe!UAnimInstance::EvaluateAnimation() (0x00007ff7b65fe048) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\animation\animinstance.cpp:494]
ShooterGame.exe!USkeletalMeshComponent::EvaluateAnimation() (0x00007ff7b6455584) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\engine\private\skeletalmeshcomponent.cpp:1206]
ShooterGame.exe!USkeletalMeshComponent::ParallelAnimationEvaluation() (0x00007ff7b646d48a) + 90 bytes [f:\build\live312jenkins\engine\source\runtime\engine\classes\components\skeletalmeshcomponent.h:1620]
ShooterGame.exe!TGraphTask<FParallelAnimationEvaluationTask>::ExecuteTask() (0x00007ff7b6462201) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\core\public\async\taskgraphinterfaces.h:881]
ShooterGame.exe!FTaskThreadAnyThread::ProcessTasks() (0x00007ff7b5a1a9e6) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\core\private\async\taskgraph.cpp:1257]
ShooterGame.exe!FTaskThreadAnyThread::ProcessTasksUntilQuit() (0x00007ff7b5a1a73e) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\core\private\async\taskgraph.cpp:1150]
ShooterGame.exe!FTaskThreadBase::Run() (0x00007ff7b5a190fb) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\core\private\async\taskgraph.cpp:622]
ShooterGame.exe!FRunnableThreadWin::Run() (0x00007ff7b5afca66) + 0 bytes [f:\build\live312jenkins\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73]
ShooterGame.exe!FRunnableThreadWin::GuardedRun() (0x00007ff7b5afc928) + 8 bytes [f:\build\live312jenkins\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:26]
KERNEL32.DLL!UnknownFunction (0x00007ffde1017bd4) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffde18cce51) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffde18cce51) + 0 bytes [UnknownFile:0]