Hi I'm trying to get my favourited application icons to group correctly when run. Some programs work, while others don't.

Here is an example of what I'm talking about.



The ones on the left are the favourited ones. Ads you can see Firefox and VS code group the icons correctly, while the ones on the right don't; they get separated out and aren't joined together.

I've come from Ubuntu-Budgie and this was done correctly when I had that distro installed. How do I get it fixed for this distro as well? I'm using Ubuntu 20.04 LTS.