Import Passwords button does nothing

I'm having the same same problem on both Windows 10 64-bit (1Password 8, fresh install today) and macOS Ventura (1Password 8, fresh install today) -- the "Import passwords" button clicks (flashes) but literally does nothing, as if the button were a facade with no code behind it. This "click but do nothing" behavior is on BOTH platforms, fresh installs directly from 1Password. I would expect an error message or the button to be GREYED OUT, rather than this strange "flash and do nothing" kind of behavior. Super frustrating, as I have ALL my passwords in LastPass and I can't import anything.