Epic Elite

Hi guys,
I purchased an Epic elite ski and on about my 8th paddle it split away from the seam about 2m in length. No impact what so ever. The repair was eventually covered under warranty (another story) but still not 100% on a cause. Has anyone else had a similar experience? Also on inspection of the area there didn't appear to be any trace of any glue or adhesive under the seam, does anyone know what is used to bond the seam?
cheers.