Hello!  I'm having some trubles with my strobe and camera ( I'm not sure if I conected everything allright or I'm doing something wrong) I already try all modes of flash of the camera (Sony a7II) with every combination of the flash (YS-01 sea n sea) with my housing (Sea Frog Sony A7II NG V.2). The problem is that my flash is not firing.To get in context I use a Sea & Sea Sync Cord - Nikonos Style for YS strobes with a Retra E-Opto Sync Cord Converter - Sea & Sea 5 Pin to to conec