Automatic Actions is broken on my XFCE panel-applet of Clipman.

No idea why, or if there's a setting I've ignored, but I tried to test the Automatic actions. I copied an URL, I clicked the panel icon - I held Ctrl down over the copied text (I think it had been marked as selection, but I also copied it with Ctrl-C - and by clicking it on the list, both normally and with Ctrl pressed down. Ctrl down did not give me any popup about the action and clicking the copied item from the list didn't launch the action either. The action I'm talking about is the Long URL. I have set it to show and execute the actuon when Ctrl is pressed, but it does nothing. Any help? Am I just doing something wrong? This is how it should work, no? Oh, and the Automatic Actions are enabled.

The version of Clipman panel applet is 1.4.3. And the version of Linux I'm running is Linux Mint 19.3 Tricia Need more information?