It was that certificate that needed the permission change that was the block.

Honestly thank you so much to all of youf or your help I'm going to put together a post later this week step by step on what I had to do to get it working just incase anyone does face the same issues and at least then it summarised in one central location

@DanH cheers for that the AI heavily judged me for not quite having the correct type of certificate and I was able so far to successfully sign the things!

@d-healey thanks for your advice of doing it manually first so everythigns in place solid as always!

@JamesC @d-healey as predicted I missed a step, thanks so much for the videos that you have put out there, should have started with them!