I will check the event viewer.
My drivers are all up to date. No 32 bit plugs. I know that since I upgraded to Windows 10, any plugs the require the iLok manager don't work, so I haven't bothered using them.
The only other thing that I can think of is the UAD stuff.
It's odd. I'll have issues with certain features working. I get frustrated and walk away for a while. Then I'll reopen Sonar and that feature will work as designed.