Ok @mouser, one at a time. Good idea.
Using the portable Beta and the Red capture setting, the capture window is frozen as soon as it pops up after I hit 'Ctrl+click.' But, if I 'Alt+Tab' away from it and then cycle to it, it is not frozen, I can make choices and all is well. It's just frozen until I 'Alt+Tab' away and come back.
I tried just clicking (no 'Alt+Tab'-ing) on other windows or apps and then clicking back to SC, but that didn't unfreeze. The only way I could unfreeze it was to 'Alt+Tab' it. FYI, 'Win+Tab' had the same effect, it recovered it also. Also, I don't have to 'Alt+Tab' back to it directly. I can 'Alt+Tab' to something else and then just click the SC window and it will be alive again.