Lpub lost the ability to see Lsynth constraints

[Alasdair Ryan]

I was making instructions for some test files which had Lsynth cables and pneumatic hoses.But when going through the pages of the instructions Lpub seams to have lost the capability of showing up the constraint parts.

Now I know I had it working before as I have made a few things with hoses and cables and it showed up fine,I must of done something but I cant think of what it is......Has any one else had this issue of came up with a fix?