Okay so there's still bugs in this version, unfortunately. I have recorded some videos to help show what I'm encountering. Please note that all of these bugs were also happening back in the 4.6 version.
Thank you for all the work you did with the videos! I hope I can help fixing these issues, let me some time to study them, and maybe I'll need your attract.cfg file to proper debug it. I never saw this issues in my tests with mixed romlists.
Question. When I go to Layout Options I see one of the options being "Show boxart or flyer mode" and the choices are "Yes" or "No". What does that mean. Also it's set to No by default. How does this play a role in some systems being in boxart mode, like PS2 and arcade but then you have some systems like the ps1 in screenshot mode? I'm assuming this is a bug?
The setting "Show boxart or flyer mode" should be renamed because it's confusing: it's not a selection of boxart vs flyers, actually boxart and flyers are the same thing in AM. So despite the bad wording, if it's set to "Yes" then boxart (or flyers for arcade) are shown, if it's set to "No" then screenshots are shown. But this is just a "default" setting. Each display can have its own setting, just set a hotkey (by default Custom3) or use the utility menu to switch each display as you like it.
Oh and the non-centered displays menu is by design, the right portion of the screen should be artowrk put in the menu-art folder. I'll make an option to enlarge the menu if no artwork is needed.
Hey one good news though is there's no more crashing with this version like there was in 4.6!
Edit: Oh and one more thing. I don't see any option for "Small Thumbnails" in the Layout options. If I switch "Rows in Horizontal" from 3 to 1 then I still get large 3 thumb rows.
Good to know that at least crashes are no more! The small thumbnails is an option in Horizontal Rows: the option is now 1-Small, 1, 2, 3 and the first one is what you should set to see small thumbs