I'm in Panotour Pro 1.8
I'm in a moderate sized project of 18 panos and many hotspots. Today, I've started having problems with some of the pano thumbnails in the main PTP window do not activate when I click on them. This makes it impossible to edit the hotspots and views for those panos. At the same time, different panos can be successfully clicked on, and sometimes the ones I was having trouble with later become available. Is this a known bug? Any workarounds to allow me to finish my job?
I'd say 18 panos is quite a large project.
What is the spec. of your computer hardware and which OS are you using?
How large are the pano images and what format?