Don't know if that bow has a lot of r/d, but if it doesn't, a 29 1/2- inch draw puts a lot of stress on those limbs and the riser. I've found that the heavier the limbs (i.e., draw weight) the more prone to bow breakage.
The trend lately is for folks to want/shoot shorter and shorter bows. And some of those shooters have long draw lengths -- 29-31 inches or more. Some designs can handle that, but a lot of them can't.
Though a lot of guys with your draw length or longer shoot 62-inch bows with no trouble, I think that's pushing the limits with a lot of designs. And, of course, not everyone who hangs out a shingle builds a good bow.
The breakage is unfortunate, but it does happen. Better luck on the next go around.