Renaming a game from the favorites list causes the game image to be lost.

[Predatux]

I would like to know if it is a bug, or is it something that is not implemented.
I have a list of MAME games which works fine. I also have no problems with images.
The emulator uses the name of the rom to display the names of the games by default.
I really find it annoying to find a game called "gng", instead of seeing "Ghost'n Goblins", so I tried adding that game to the favorites list, and renaming it from there.
The problem I have run into is that if I do it, it no longer recognizes the image.
I have gone to the snaps list, and I have copied the gng.png file, creating another like it with the name Ghost'n Goblins.png, thinking it would work, but it doesn't.
I've also tried editing the favorites list to try to add the image path, but it doesn't show where to do it:

{
"path": "/media/Emuladores/Roms/MAME/1942.zip",
"label": "1492test",
"core_path": "DETECT",
"core_name": "DETECT",
"crc32": "00000000|crc",
"db_name": "content_favorites.lpl"
},

I have not found a way to rename the games without losing the images.
I've also tried duplicating a rom and renaming it, but many of them won't start.
I would like to know if there is any way to rename the favorites list without losing functionality.
Thanks in advance.

[hizzlekizzle]

This is normal, yes. The thumbnail images are matched by the playlist name. However, to get to your original issue with the ugly 'gng' names, you can do a manual scan and give it an arcade DAT to match against and it will give you the pretty names.

[Predatux]

Thanks a lot