Notifications of new message arrivals appear in blank

Description

Notifications on new mail arrival appear in the top right of the screen in a blank, except for two mail icons

To Reproduce…

Steps to reproduce the behaviour:

  1. new mail arrival
  2. A notification appears in top right screen but completely blank except for two email icons

Expected Behavior

A notification box with an excerpt of a new message arrived.

Screenshots

Setup

  • OS and Version: Windows 8.1
  • Mailspring Version: 1.7.4-d54ff730

(Originally posted by jmirap on GitHub.)