I have not had this issue with any version on VP or TP. I am currently using the latest versions of VP (15) and TP. (6) Just a thought, I always save my TP work in the same file folder as my project media and the VP .veg file. Have you tried using the trial version of TP 6? (not sure it lets you save your work) As I said, just a thought if you are not saving the TP project in the same folder as your media and veg file, give it a try.
James Ollick