furbs

This might help explain:

Ah I re-read your post and see what you mean about LB not knowing if you're merged or not. Yeah probably needs a check box/drop down during the export process to select non-merged or not then a notification/summary if you're on a merged set and then hopefully LB can work from there. Thanks for the explainer.

Just giving this a bump. I've having the same issue where the Export to Android is exporting the entire ROMSet (0.262) whether I use a Merged or Non-Merged set. Launchbox version 13.11

Just to add another voice to this. Nvidia Shield (2019) with a 256gb USB3 flash drive mounted as internal storage Launchbox 1.12 Full 2003 Mame Romset (Non-merged) Tried both the version of Retroarch that Launchbox installs and 64bit Sideloaded Tried multiple cores on both versions of RA Extract ROM content is unchecked No issues with importing (which I've done multiple times) No issues launching directly from Retroarch (either version) directly Launching arcade games through LB gives the black screen. All other platforms work perfectly. Edit: I may have just fixed it, at least for myself. I deleted my existing Arcade list in Launchbox (choosing not to delete media or games) I then reimported the games, but this time did NOT use the "this is a full MAME romset" Using retroarch (installed by LB) with mame2003_plus_libretro_android.so and my games loaded. Switched to Retroarch (64bit Sideloaded) with the mame2003_plus_libreto_android.so and again things loaded. If I use the mamearcade_libretro_android.so with Retroarch (ie loaded through LB) or Sideload, I get the blackscreen crash again. So in my case there seem to have been two factors in play. Firstly the core, for my Romset had to be mame2003_plus_libretro_android.so However, as listed in my initial post, I had tried that before, which leads me to the second factor - possibly an issue with the "Full Romset" import feature? I'm 99% confident my set is full - while I won't say where it came from, lets just say its a trusted archive. The only thing I didnt do was move CHD folders in to my ROM folder, but when doing the import using the Full import feature, I told it to skip CHD games anyway. Hope that helps someone.