When you read the Sandcastle Instructions Manual and click continue at the bottom nothing happens

thats how those things work. They by default have a continue button because Mur hacked some interface together and its rubbish.

it would make more sense if continue sent the player back to the scene rather than doing nothing, it will confuse people

agreed, but im not looking into fixing Mur hacks atm, Im trying to finish some of the many bigger projects he never finished

Added to redmine but lowpriority.