IE11 - 1Password and tabs

nlsj5

Having a strange problem with the 1Password extension and IE11 (Win 8.1). If I have multiple tabs open and try to use the 1Password extension to populate the username and password in the frontmost tab, the extension actually offers passwords for a site that's open in a background tab. This doesn't happen on a consistent basis, however. Wondering if others have seen this and if there's any reason for this behavior.