Originally Posted By: rharv
Others advice above is probably better than this, but

Sometimes certain apps load new previews from the internet
If that is the case, I've noticed Kontakt servers being mighty slow this holiday season.

I'm not sure if those particular previews do this or not, just a thought

Thanks rharv! Great suggestion but didn't seem to be the issue here. I've had this problem with these specific libraries for over a year and have tried them at all times of the year, day and night, etc.