Here are the Windows event logs generated when I try to switch to primary.
Application: SdDisplay.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IO.FileLoadException
Faulting application name: SdDisplay.exe, version: 1.9.2.2351, time stamp: 0x5edf9cda
Faulting module name: KERNELBASE.dll, version: 10.0.19041.2364, time stamp: 0x1e5c8604
Exception code: 0xe0434352
Fault offset: 0x0012e292
Faulting process id: 0x204
Faulting application start time: 0x01d92c18fb8b290c
Faulting application path: C:\Program Files (x86)\Stardock\Multiplicity\SdDisplay.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 06395e8f-836e-4667-b474-a3ba0a0f0532
Faulting package full name:
Faulting package-relative application ID:
Fault bucket 1975897428228589104, type 1
Event Name: APPCRASH
Response: Not available
Cab Id: 0
Problem signature:
P1: SdDisplay.exe
P2: 1.9.2.2351
P3: 5edf9cda
P4: KERNELBASE.dll
P5: 10.0.19041.2364
P6: 1e5c8604
P7: e0434352
P8: 0012e292
P9:
P10:
Attached files:
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERBC.tmp.mdmp
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER11B.tmp.WERInternalMetadata.xml
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER12B.tmp.xml
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER139.tmp.csv
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER159.tmp.txt
These files may be available here:
\\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_SdDisplay.exe_ddac4ce921d7f7718c37859b7589231ae32a82a2_caf4240e_2446ada7-87a9-4055-a193-b2056569c0b7
Analysis symbol:
Rechecking for solution: 0
Report Id: 06395e8f-836e-4667-b474-a3ba0a0f0532
Report Status: 268435456
Hashed bucket: 11d2de416329991c0b6bcc3e022c4630
Cab Guid: 0