What is your operating system? Windows 10
What is your Shotcut version? 23.07.29
You’re probably aware of this small problem. I don’t remember seeing any mention of it on the forum, so I report it, just in case.
In the Filters panel, click the + button and select the Sets category.
This highlights the Sets button.
Switch to another panel (Playlist for example) to quit the Filters panel.
Go back to the Filters panel and click the + button.
The Filters panel shows the list of filter sets, but the Favorite category is highlighted instead of the Sets category.