Importing custom png for hotspots in 360 video

Hey there, I’m having some trouble importing custom .png hotspots in my 360 video project. I was able to import a .jpeg, however it didn’t have a transparent background. Looking at tutorials online, it seems possible to import .png files in Captivate, so I’m not sure what I’m doing wrong. Could someone please provide some assistance on this matter? Thanks, Sahil