1Password has gotten confused a few times for me. (No way I'd ever use Chrome's. Or Apple's, for that matter.) Although now that I think about it, I think not in a while.

Still annoys me - a classic example of offloading the costs of technical decisions on the user, even if those costs are "just" mental energy and a page load. At the very least, if you feel you need to do this, make the login pages very, very lightweight. One I log in to daily has huge background images that are utterly, stupidly useless, wasteful, annoying and for some reason uncacheable.