Crash (ark dev kit)

So my ark dev kit crashes whenever i sculpt the landscape then try to save the progress. this is the crash message:

Assertion failed: NewPosition >= 0 [File:F:\build\ARKModKit\Internal\Engine\Source\Runtime\Core\Private\Windows\WindowsPlatformFile.cpp] [Line: 59]

VERSION: 316.15
KERNELBASE.dll!UnknownFunction (0x00007fff46283b19) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbe9f04d) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbd82308) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbd53d22) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbe7e9a4) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbc6d0f4) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbd9a4da) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffeebd8dd7c) + 0 bytes [UnknownFile:0]
UE4Editor-CoreUObject.dll!UnknownFunction (0x00007ffeebe1516c) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffed8e6a9da) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffed8f75d94) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffed8f725ac) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffed9261113) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffed8fc2716) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffed8fc1237) + 0 bytes [UnknownFile:0]
UE4Editor-WorldBrowser.dll!UnknownFunction (0x00007ffebab9a639) + 0 bytes [UnknownFile:0]
UE4Editor-WorldBrowser.dll!UnknownFunction (0x00007ffebab7ac9d) + 0 bytes [UnknownFile:0]
UE4Editor-WorldBrowser.dll!UnknownFunction (0x00007ffebab11a7f) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffeda2eef6a) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffeda322b62) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffeda243f26) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffeda22fccb) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbdfd87d) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbdd9ebb) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbdfea09) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbdd3cf9) + 0 bytes [UnknownFile:0]
USER32.dll!UnknownFunction (0x00007fff47df5c1d) + 0 bytes [UnknownFile:0]
USER32.dll!UnknownFunction (0x00007fff47df5612) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffedbdff766) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff6bfeead24) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff6bfedfa9f) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff6bfedfb0a) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff6bfeec79e) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff6bfeed6d9) + 0 bytes [UnknownFile:0]
KERNEL32.DLL!UnknownFunction (0x00007fff47d37c24) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007fff4930d721) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007fff4930d721) + 0 bytes [UnknownFile:0]

because of this all forward progress is halted and i am baffled as to what to do. Any help is appreciated.

can anyone help me?