Ignition modules 6-4-1 pin to IgniTech modules (2)

Hi all,  a little follow-up.

After about 35 engine hours of use (about 8 months) one of the Ignitech modules got faulty.
At first engine start it works, but the engine runs rough and after less than a minute it stops working entirely.

Shipped it back to the factory and hope to get a replacement soon.
Meanwhile I replaced it with the original rotax module.
As a side note, when switching circuits, the Ignitech runs much smoother than the rotax one on low RPMs!

Does anyone know of an Ignitech module which went U/S and maybe what could have been the cause?