I've got the romulator board on an Amiga 500++ and all I get are LED1 and LED2 lit up solid blue, no menu (black screen) and no music. Boots fine with original 1.3 rom. KB reset line verified to be working and rev 3/5 jumper is off. This is one of the first batch AOTL got. 8gb SD card formatted fat32.
config file:
default=
delay=5
update_default=true
play_music=true