I checked wheel and sprocket alignment, everything is as was when I installed the chain and front sprocket......so it looks like it is the chain at fault .....unless a bit of road debris hit the chain, but I didn't see or feel anything.
As I need the bike, I havn't the time to wait for a warranty replacement, so bought the D.I.D chain that is in the photo, this is a very heavy duty chain and is actually 3mm wider overall than the Renolds, which was wider than the OEM elastic band. What a well engineered chain the D.I.D. is, the rollers slot perfectly into the sprocket teeth, spinning the wheel and the chain emits a low rumble rather than a rattle, being heavy duty, it looks the part to.
I also did a bit of tin bashing to straighten out the chain guard, there is a small hole where the Renolds ripped through it, I'll sort that out at a later date.