Hi Trevor,
can you give some more info ?.
What version O/S and Sonar (64/32) ?.
Example of which effects do not stay configured as tempo based ?.
Also, do they lose the setting immediately ?,
or only after a close and re-open of the project ?,
or after restarting Sonar ?.
Do you have Sonar set to scan VST folders on startup ?.
Cheers - Cliff