mp4 or mov file not opening in Bridge 11.0.2.123

All old .mov and .mp4 files opening OK in Bridge, but 2 x latest files, 1.mov and 1.mp4, will not open from Bridge in Quicktime Player. When opening from macbook Finder file, they open OK with quicktime player. But trying even saving files to another Bridge folder with a different name and files still will not open from Bridge. When saving file to another Bridge folder, just shows as a blank with the word Exec in it.