Finally figured out what the issue was, but not sure how to solve it.
It seems mame is looking for these 2 games in a directory they are not in when run from the command line / Attract Mode, but not sure how to change this.
In an effort to organize my roms better, and making sure everything works correctly, I moved the roms from the roms directory inside the mame folder to an outside folder which will contain all the roms for all the different systems.
I changed the roms path for mame oin the gui and regenerated the internal list, and most games worked fine that way. However these 2 for some reason are still expecting to be in the mame\roms folder.
I copied the zip file from the roms directory everything is now in, to the old roms directory, and the game worked from the command line and Attract Mode.
So I'm at a loss, as to why its still looking for those 2 there. There's nothing else there and all the other games work fine from the new folder. So not sure how to actually force mame to look for those specific 2 games in the new directory, or why it isn't trying to find them there in the first place