Refresh - Topaz Gigapixel

Hi, I just bought you Topaz Gigapixel program.
I want to test with a low res photo, but nothing happening. I tried to restart my laptop, but it did not helped.
The update/refrech ikon just running in the right side of the window, under the rewiew image ( says scanning image… → and nothing happening) and do the same at the side of the AI Model text.

I have a MAC - MacBook Pro (Retina, 15-inch, Mid 2015)
Graphics: AMD Radeon R9 M370X 2 GB
Memory : 16GB 1600 MHz DDR3
Processor 2,5 GHz Quad-Core Intel Core i7

Can you help me with this issue?

Until the issues are investigated maybe try version 6 temporary: