Crash and unable to load world - 1.15.9

[Jonathan O'Brien]

Experienced a crash in multiplayer (open to local LAN, not a stand alone server) with 1.15.9.  Two players.  Created a new world and played for a few hours and suddenly hit a crash.  I was subsequently unable to re-open the world after this.  New world creation and load is successful.

Probably unrelated, but this was within a few minutes of first pickaxe use and also the first time I noticed fog.

No mods active, though CarryCapacity 0.6.3 was installed and disabled the whole time.

The crash report below is when trying to re-open the world.

Quote

Running on 64 bit Windows with 16 GB RAM 
Version: v1.15.9 (Stable)11/7/2021 8:22:42 PM: Critical error occurred
System.NullReferenceException: Object reference not set to an instance of an object.
   at Vintagestory.Client.NoObf.ClientWorldMap.MarkChunkDirty(Int32 cx, Int32 cy, Int32 cz, Boolean priority, Boolean sunRelight, Action OnRetesselated, Boolean fireEvent, Boolean edgeOnly)
   at Vintagestory.Client.NoObf.ClientWorldMap.loadChunkMT(_xPDrOhl99HuGp2XXaBtGrV9Ab9W p, ClientChunk chunk)
   at Vintagestory.Client.NoObf.ClientWorldMap.<>c__DisplayClass102_0.<LoadChunkFromPacket>b__0()
   at Vintagestory.Client.NoObf.ClientMain.ExecuteMainThreadTasks(Single deltaTime)
   at _pGnDS8PRrVztoyRAoNqXbYkko9B._TshCCJvNc6laaisiRTK6RNaXWQ1A(Single )
   at _o0lbNJXQO06me4d8j661Kh7y0zO._HmSBpw6fP4XFLEcv29tc0ifOKYvb(Single )
   at _o0lbNJXQO06me4d8j661Kh7y0zO._3U99eoPu0PaDLPVrL8tfzH5UDEJ(Single )
   at Vintagestory.Client.NoObf.ClientPlatformWindows.window_RenderFrame(Object sender, FrameEventArgs e)
   at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
   at OpenTK.GameWindow.RaiseRenderFrame(Double elapsed, Double& timestamp)
   at OpenTK.GameWindow.DispatchRenderFrame()
   at OpenTK.GameWindow.Run(Double updates_per_second, Double frames_per_second)
   at _M48MnHH5BAvHUzcYoEuchRW0acb._e0atQ8VmmvgBK7zb3Yh4iDqOiHY(_UGHNIsOGTJBe1BTRXYmLwHTbmS , String[] )
   at _xNqQDGqRsRSMIeuzt2MHKQHDzSd._e0atQ8VmmvgBK7zb3Yh4iDqOiHY(ThreadStart )
-------------------------------

Event Log entries containing Vintagestory.exe, the latest 3
==================================
{ TimeGenerated = 11/7/2021 8:22:46 PM, Site = , Source = Application Error, Message = Faulting application name: Vintagestory.exe, version: 1.15.9.0, time stamp: 0x6187ffbc
Faulting module name: KERNELBASE.dll, version: 10.0.19041.1202, time stamp: 0xc9db1934
Exception code: 0xc000041d
Fault offset: 0x0000000000034f99
Faulting process id: 0x7274
Faulting application start time: 0x01d7d4582c986e40
Faulting application path: C:\Users\kids\AppData\Roaming\Vintagestory\Vintagestory.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 5a4c338b-0992-46fe-adaa-a7bd9235ccc4
Faulting package full name: 
Faulting package-relative application ID:  }
--------------
{ TimeGenerated = 11/7/2021 8:22:45 PM, Site = , Source = Windows Error Reporting, Message = Fault bucket 1452276369817821586, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: Vintagestory.exe
P2: 1.15.9.0
P3: 6187ffbc
P4: KERNELBASE.dll
P5: 10.0.19041.1202
P6: c9db1934
P7: c0020001
P8: 0000000000034f99
P9: 
P10: 

Attached files:
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER12D5.tmp.mdmp
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1576.tmp.WERInternalMetadata.xml
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1596.tmp.xml
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1594.tmp.csv
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER15B5.tmp.txt

These files may be available here:
\\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_Vintagestory.exe_e8f497a347a29cc62e71d389ed59c3c53060a741_e052d6cd_f8774b78-ce4c-4cff-aa2d-0428d34f1f9f

Analysis symbol: 
Rechecking for solution: 0
Report Id: 5c398363-d06f-4eba-8f0c-098a8e9ae2d0
Report Status: 268566528
Hashed bucket: 75a3a83bc21cc03a342785a9f2af6192
Cab Guid: 0 }
--------------
{ TimeGenerated = 11/7/2021 8:22:43 PM, Site = , Source = Application Error, Message = Faulting application name: Vintagestory.exe, version: 1.15.9.0, time stamp: 0x6187ffbc
Faulting module name: KERNELBASE.dll, version: 10.0.19041.1202, time stamp: 0xc9db1934
Exception code: 0xc0020001
Fault offset: 0x0000000000034f99
Faulting process id: 0x7274
Faulting application start time: 0x01d7d4582c986e40
Faulting application path: C:\Users\kids\AppData\Roaming\Vintagestory\Vintagestory.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 5c398363-d06f-4eba-8f0c-098a8e9ae2d0
Faulting package full name: 
Faulting package-relative application ID:  }