Recently all the global chat had fun posting various ascii/unicode art.
For example, like this one:
╔═╗
║  ║
╠═╝
║
╔═╗
║  ║
╠╦╝
║╚╗
═╦═
  ║
  ║
═╩═
╔╗╔╗
║║║║
║╚╝║
║    ║
 
╔══
╠══
║
╚══
But after the most recent update, this is what is shown in the desktop standalone app (see the squares on the right):

Is this just a bug and should be reported, or you have rebundled the unicode symbols in the app? 
(there was previously a similar issue with not all emojis being present in the mobile app)