Msd Digital 6AL

Hi all was just wondering if anyone has run into this issue , did an oil change and filter had the car running and decided to go for drive as you do when the weather is on, just got down the road and car just stumbled and shut off. Car wasn’t in a safe manner on a bend and it was a matter of time it would have got rear ended so I rang the wife to bring the 4wd and some straps to tow it home. Went through the checks what msd tell you to do with the trigger wire and paper clip coil lead to a nut or bolt no spark, try another coil blaster 2 still no spark ,with key on led will flash and Even when cranking led will flash indicating it’s triggering . I’ve tested continuity on the mag pick up wires and coil wires and all is good. This has me stumped coil is a msd HVC 8252 , Distributor is the msd not the ready to run type 8534, 8.5 leads. This thing has ran faultless from day 1 until now. Just over the 12 month warranty by 10 days . I believe it’s still the CD box. Any one can shed some light if I’ve overlooked anything . Checked all grounds 3 times just in case I’ve missed something. Cheers Walt