No Valid URL - Version 1.16

I can't seem to get the stand alone PRemulator to work. Proxies loaded properly, SemRush selected, but when I load the URLs I get No valid URL for all of them. I removed the http:// from the to see if that made a difference and still the same result. When I run the exact same list in URL Metrics Scanner, it all performs correctly. What am I doing wrong? Thanks.

MAybe the proxies are the problem?