Model image not loading

[weeone5000]

Hey, I have installed the latest official release for a mac and am working through the tutorial youtube videos. Everything seems to be working, only when I got to Manytrack, when I try and upload the model image it won't let me upload any png or other image file. It will only let me choose the folder containing the file, but then when I try and track, nothing happens. I am guessing that it's not uploaded the model properly rather than it's not tracking properly... Any help really gratefully received, this program is exactly what I need for my data analysis...
Screenshot of greyed-out png attached.
thank you!

[ashleybielawski]

I'm having the same problem. When I start tracking, I see "Current number of targets: 0." Have you gotten the program to work?