Quoting the666Unforgiven,
I am having this same trouble too
My version is 4.21 & I am running Windoze 10
Please try purge and reinstall steps as mention here : [Link]. Just make sure to redownload the latest version from your account page. Reboot after the purge. Reinstall and reboot again after the installation. Retest and report back here.
Thank you,
Basj,
Stardock Community Assistant.