Encore Title Button and Menu Remote problem with Blu-ray

Hi

I'm having an issue with the Title Button and Menu Remote button when creating a Blu-ray.  I'm aware of how they work.  I've had succes when creating a DVD and I've had limited success when creating a Blu-ray. 

Specifically if the disc begins with a timeline as first play then going to the menu, the title button and menu remote button do not work.  They will work on Preview.  However when they disc is published, these buttons will not work on my computer player OR my stand alone disc player.  I have confirmed with other discs that both players are fully functional.  This is an Encore problem.  I have also tried a complete rebuild of the project with the same results.

Alternatively if the disc begins with a menu (as opposed to a timeline) the menu button works just fine.  On my project simply by swapping the first play around and setting the appropriate title button asset, the button works.  Just to be clear, with the first option (beginning with timeline) the menu button during the feature presentation will not work.  As soon as the first play as swapped, the menu button during the feature works.  So far my only conclusion is a bug of some sort.  It may just be I have missed something somewhere (searched everywhere with no success). If so some guidance would be greatly appreciated.  Alternatively it may just be a known problem in which case confirmation would stop me from going   !

Thanks in advance