@viperacidzx Probably just the standard. Where could I check up on this?
Did you manually install the -dev version from experimental packages?
You can check in:
RetroPie-Setup > Manage packages > Manage (core/experimental) packages > emulationstation(-dev)
Only one should say "installed" since whichever one you do install will remove the other version first.
it wont' matter I think. dev build simply makes ThreadedLoading to false by default when the entry isn't there. if you explicit set ThreadedLoading to false then dev or not it will still take effect.