Since I refuse to do a vst reset and rescan because it screws up my jBridge/BitBridge preferences, here's what I did:
Copy the contents of
C:\Users\
yourname\AppData\Roaming\Cakewalk\VSTBitmapCache\Sonar Producer
to
C:\Users\yourname\AppData\Roaming\Cakewalk\VSTBitmapCache\SONAR
overwriting when prompted.
Didn't have to do a scan afterwords, worked immediately