Nexus 5, Lollipop 5.0.1 (stock & Cataclysm ROM, rooted & non rooted, stock & custom kernel), SwiftKey & Google Keyboard.
Since 4.2b7, so since the first version with your custom keyboard, filling does not work.
At first there were some force closes, where I was able to send reports.
Now on the other hand, the keyboard just completely disappears once I tap on 1Password button next to space bar.
I tried to:
Basically, in Chrome, I tap on login field, SwiftKey appears. I tap on keyboard switcher on navbar (Lollipop), choose 1Password keyboard, the keyboard appears with/without 1Password button highlighted in blue (per guide, depending on situation).
Now, when I press the blue button, keyboard slides down (disappears) and since then it's completely dead. I have to switch to SwiftKey and 1P keyboard again to do the same thing all over again. The loop is the same with gray 1Password button (no login detected), but I have to long press it instead.
If the vault was not unlocked beforehand, I am asked for password/PIN which works, and then it slides down and dies as previously.
Key thing here is that it does not work on latest 5 betas at all and I cannot send any crash reports. I can, however, send you some logcats if that helps.