With the 1Password extension I used to use cmd+Ä (German Umlaut A) as shortcut to fill browser forms.
In 1Password X these german characters e.g. capital A umlaut (alt + 142 or Ä) are no longer accepted. At least in chrome OSX 1Password x extension.
1Password Version: 7.2.5
Extension Version: 1.14.1
OS Version: OSX 10.14.1
Sync Type: Not Provided