Can D70 trigger 2xSB800?

I was having fun with a borrowed extra SB800 last weekend.
Tried a shot with D70 Commander TTL to the SB800.
Both on Channel 3, group A. But only one fired??
Ghostly bad, but certainly a fun self-mugshot
Tried a shot with D70 Commander TTL to the SB800.
Both on Channel 3, group A. But only one fired??

Ghostly bad, but certainly a fun self-mugshot
