Not sure where to post this but since I have the Beta version, here goes.
This is what faced me when I brought up 1P mini.
1Password Version: 7.4.767 BetaExtension Version: Not ProvidedOS Version: Win 10Sync Type: Dropbox
I edited your post to remove the sensitive backgroud, please make sure you edit your screenshots to remove any sensitive data next time when uploading data.
As for the icons, that looks something has corrupted the font cache on your Windows system. The icons you're referring to is stored in a custom font that .NET loads for us to render in 1Password UI.
Check for pending Windows updates, update if there's any and then try a reboot and see if that'll fix it.
Correct. I emptied my cache, rebooted and back to normal. Tsk.
Glad to hear it is working now.