P3D crashes with terrain.dll for no reason

Application: Prepar3D.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: exception code c0000005, exception address 00007FFEAFB130EF

Faulting application name: Prepar3D.exe, version: 4.5.11.29713, time stamp: 0x5ca56c53
Faulting module name: terrain.dll, version: 4.5.11.29713, time stamp: 0x5ca56bc1
Exception code: 0xc0000005
Fault offset: 0x00000000000e30ef
Faulting process id: 0x2aa4
Faulting application start time: 0x01d797292b8beded
Faulting application path: D:\Program Files\P3D v4\Prepar3D.exe
Faulting module path: D:\Program Files\P3D v4\terrain.dll
Report Id: 5cf8695d-2778-4a7c-bdcc-7ed71b12d42c
Faulting package full name: 
Faulting package-relative application ID: 

Fault bucket 1357795657866503116, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: Prepar3D.exe
P2: 4.5.11.29713
P3: 5ca56c53
P4: terrain.dll
P5: 4.5.11.29713
P6: 5ca56bc1
P7: c0000005
P8: 00000000000e30ef
P9: 
P10: 

Attached files:
\\?\C:\Users\USER\AppData\Local\Temp\{FB32D8B9-EAA6-401E-954E-41EFE1DFE3DE} - OProcSessId.dat
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER52ED.tmp.mdmp
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER6359.tmp.WERInternalMetadata.xml
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER636A.tmp.xml
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER6379.tmp.csv
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER6399.tmp.txt

These files may be available here:
\\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_Prepar3D.exe_f6eaf911ff9b5a30ed31944d34fff3cad1cb1b58_0255e330_6453330d-684d-49ef-8f24-b524455b070a

Analysis symbol: 
Rechecking for solution: 0
Report Id: 5cf8695d-2778-4a7c-bdcc-7ed71b12d42c
Report Status: 268435456
Hashed bucket: 64ce215f036b7a3652d7dbf4f8b363cc
Cab Guid: 0

This is not new to me. I have tried re-installing windows assuming corrupt system files, lowering my autogen, and scenery settings. Even the autogen setting are set to sparse, and none. 3D Dynamic Autogen vegetation is turned off. I was cruising at FL390 at 17:30 zulu, and was 25 Nm from my TOD. Suddenly P3D stopped responding, and crashed, with this error, within 10 seconds.