I created a custom shortcut menu (on an XY graph) and saved it by selecting "save with control". This worked fine while I was running LabVIEW but did not work in the executable version that I created. The label of my XY graph was something like "X/Y GRAPH". I guessed that LabVIEW was trying to save my shortcut menu by using the string "X/Y GRAPH" and that the "/" was causing the problem. I changed the label to "XY GRAPH" and everything now works fine. Does this count as a bug? Do widget labels need to use legal filename characters if I am going to create custom shortcut menus?
I have reproduced your situation and this does not count as a bug--the slash counts as a special character and the filenames have to be alphanumeric. I hope that answers your question.