Hello @gemmell
First help is best asked for in bugs and fixes category.
But from what you have written are you requesting on how to play a card from start to finish?
If yes then there is no way to do that as the card is broken down into clips and there is no true start, middle or end to a card.
If you want to watch every clip in a particular card then it is best to disable all cards and just select 1 card and make sure all levels are selected and just be patient as you may get clips repeating.
A couple of members have made additional functions that can help but if you are not technically minded they may not be any use for yourself.
Hope this helps and if it does not please respond with more detail on your issue.
By the way welcome to the forums. Enjoy! ;-D