I noticed this too on my shield. I was going to put some ISOs on my SD card for FPSE to use. When I was in FPSE's config, I was going to try and point it to the SD card but it would only allow me to work with the onboard memory. Would the SD card fix allow me to get this working? I really don't want to store ISOs on the onboard memory or just continually shuffle my active ISO to the internal memory when I want to play that game.
High use tab-Transformer 700-CROMI-X XBMC tab-Transformer 300-Cromi-X
Nexus 7-Purity ROM Galaxy Tab 3 7-Crash ROM
Gaming devices-NVIDIA Shield / Tegra Note
Blue Stacks for Windows Retired-HTC Flyer, Droid Eris, HTC Tbolt, HTC Rezound, Lenovo K1, Transformer 101, Transformer Prime, Nook Color, Dell Streak 7