Thanks for the reply humanscape. I have checked all seemingly obvious things like opacity and visibility. Unfortunately I cannot post he capx as its quite large and has many includes.
It is really a guessing game without the capx. I've hit similar issues when changing fading on one layout, but forgetting to change it on the other. Or, hiding objects at the wrong time. I am sure it is relatively simply
Large capx is not an issue with dropbox and such. However, I can understand if you do not want to hand it out due to the content, and to prevent giving out trade secrets. You can upload it to a secure location and send it to me if you wish (I pinky promise not to cause harm). Alternatively, you would need to strip it down to something you can send that would pose no threat to your capx in the future.