It's okay. I understand it, given the effort you have put into this great project.
I've done some more research and I see that this message (warning: layout view 'lights out bezel' contains deprecated bezel element) only pops up if I launch the game from LAUNCHBOX. If I do it directly from the "MAME" program, that window does not jump and the game is not minimized.
I don't know if it is a problem due to the latest Launchbox update.
I Don't know if there will be any way to fix it. Maybe adding some command besides: "-keyboardprovider dinput". Maybe....
What I did notice is that since the Launchbox update. In BIGBOX mode, now I cannot close the MAME games from the launcher commands. I have to do it with MAME program. If someone happens the same thing. Let's see if we see some light here.
I'll keep inventing. Greetings, genius ?.