I have just observed this happening in YouTube on Firefox as well. The browser debugger says the missing fonts are indeed Roboto. Looks as though it may be a problem with the Roboto font as packaged.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1668495 Title: Unable to render Roboto font needed for Guitarix UI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/guitarix/+bug/1668495/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs