Keyboard layout switching unvoluntarily when opening new application

I use three different keyboard layouts, USA, Can and Rus. My default layout is USA.

I have set the keyboard layout to be system-wide instead of application specific because it allows me to keep track of only one status. However, whenever I open a new application, the system-wide layout is always reset to the default layout. For example, if my layout was set to Can and I opened vlc, the layout would then switch back to USA for the whole system. I don't quite understand how or why this could be a desirable behavior...

Do you have any idea as how to get rid of this?

If not, where can I open up a feature request?

EDIT: I did some more testing and in fact, the behavior seems inconsistent. Sometimes the layout will switch, sometimes it won't. I can't pinpoint what is the exact source of the issue.

EDIT2: I think some applications do it, some don't. Ex: VLC does it, gedit doesn't.