Msd Digital 6AL

Just an update on the fix sorry for the long post first I got in touch with the shop I purchased it from and went down there and they tested it out and and fired perfectly brought me in to verify it cranked it up asked me what I had set the rev limiter to and tested fine. He said check the main harness to cdi box plug as they have had some with some issues with faulty plugs anyhow get home start checking the main harness plug and thought I will test all wires with a meter again all check out until I got to the orange coil wire nothing I’m thinking that’s strange as I was getting a reading through it on the weekend disconnect pin from the cover start moving wire around while I’m holding the pin and have the meter on it and bang find there’s a break in the wire about 10mm back from the pin . Cut solder new pin test again just to be sure before feeding it back in . Have spark again . What baffles me is how did this break as there’s no tension on wires , plug hasn’t been removed or played with as it’s out of the way .