1password 8 is a disaster. How do I revert to 7?

EDIT nevermind, a reboot and reinstall of the app and turning on extension seems to have solved it for now. Really hoping the disasterous search implementation of v8 gets changed back to what v7 had, otherwise we'll never be able to upgrade to 8...

Can someone help, I followed the steps to revert back to v7, but now the extension won't work in Safari. When I go to preferences and click the checkbox to turn it on, it flashes in the toolbar but disappears. I'm unable to click on it or use it and it doesn't show up in the customize toolbar options. I've tried various attempts at unchecking the box and restarting safari, etc. but so far I can't get the extension back on Safari. I need to get this working since v8 is unusable for our team, appreciate any help you can give!