FireTv 2015 - Bios crashes - Tekken not loading

Ive got a Firetv 2015 edition. ive sideloaded the latest edition of Retroarch and got it setup, Ive got a roms folder and bios folder on my external sd card with the relevant files in there.

Most of the standard ‘mame’ games seem to work fine but the ones that require a Bios, Ie tekken dont seem to load correctly. The game will load upto 99% and then it crashes out back to the quick menu with no options.

All my roms and bios are up to date and tekken runs fine on my pc running retroarch.

It just crashes on the firetv.

Any ideas?, or has anyone successfully got tekken running on their retroarch setup on the firetv?.

Fixed some of the roms by having the bios in the game directory.

you need to have the bios files in the mame roms folder like scoobydoo said. I never got Tekken in MAME to run very fast on my SATV. I just play Tekken on PSX instead.