Please bear with me as I’m super new to underwater photography. I recently purchased a second strobe, a ys-d2, to compliment my ys-d1 and Olympus tg-6. I will be diving in the morning and went through prepping everything and taking a few test shots. I am using the backscatter settings for wide angle with strobes (Aperture priority, f2.8, flash set to fill in, etc). Well my shots are completely black! I turn the d2 off and just shoot with the d1 and the shots are fine. I’ve tried switching cables between the two and no difference. I’ve confirmed that both are firing, but for some reason the d2 causes the pics to not turn out. I am running both on ttl and am scratching my head. If anyone has any suggestions I’d greatly appreciate it. Cheers.