EmulationStation not displaying Scraper data for games in subfolders?

[RottenBlock]

Pi Model or other hardware: B+
Power Supply used: 5V, 2.5A
RetroPie Version Used: 4.4
Built From: Pre made SD Image on RetroPie website
USB Devices connected: Keyboard.
Controller used: Dualshock 4
Error messages received: None.

How to replicate the problem:
When I use EmulationStation and browse to a game, scraper data seems to appear or not appear based on where the ROMs are stored on the Pi. If my ROMs are in the system's ROM folder ("roms/nes"), scraper data appears fine. When my ROMs are in a subfolder ("roms/nes/Mario/") the scraper finds the data, but EmulationStation doesn't display anything. It doesn't seem to matter which scraper I use, the problem is the same.

For example, here's some Scraper results for the SG-1000, comparing the two versions of Othello, one nested and one not.

<game>
		<path>./Japanese Othello Multivision BIOS.sg</path>
		<name>Othello</name>
		<desc>Othello is an SG-1000 video game based on the board game Othello, etc etc.</desc>
		<image>/home/pi/.emulationstation/downloaded_images/sg-1000/Japanese Othello Multivision BIOS-image.jpg</image>
		<releasedate>19850101T000000</releasedate>
		<developer>Tsukuda Original</developer>
		<publisher>Sega</publisher>
		<genre>Puzzle</genre>
		<players>2</players>
	</game>

<game>
		<path>./Othello/Othello.sg</path>
		<name>Othello</name>
		<desc>Othello is an SG-1000 video game based on the board game Othello, etc, etc.</desc>
		<image>/home/pi/.emulationstation/downloaded_images/sg-1000/Othello-image.jpg</image>
		<releasedate>19850101T000000</releasedate>
		<developer>Tsukuda Original</developer>
		<publisher>Sega</publisher>
		<genre>Puzzle</genre>
		<players>2</players>
	</game>

The first (unnested) works, and the second (nested) doesn't.

Is there anything I can do, besides move all my ROMs into the base folder?

[mitu]

@RottenBlock Can you check the ES log file in ~/.emulationstation/es_log.txt after you browse the sub-folder and see if any errors are displayed ? What theme are you using ?

[RottenBlock]

Oh, wait I understand now - I didn't realize each of these items in the lists were, themselves, subfolders containing the ROMs. The theme I was using, Eudora, didn't give any indication that the subfolders were different from the ROMs, and since that made the menu look buggy to me, I didn't want to test the "buggy ROM." The moment I switched to Carbon, the difference was obvious. A simple click would have answered all my questions.

I feel very sheepish, you'd think I'd never used a computer before. But you helped me work it out, and thank you for that!