Seems to be stripping phone numbers and thus fails to send anything when I select a number from my contacts. I am in Finland and numbers look like +3584012345678, but the text gets sent to 584012345678.

This gets confusing, as the sent items are shown correctly in Android Messaging, but the messages are not delivered.

Also: Please add support for delivery reports.

(Copying my comment from the google extension page without a few typos.)