[Curtis Taitt]

Happenned to me. Opened my project and 2/3 of the clips and audio had the stripes over them. What I did to fix is to make any clip with the stripes offline and then relink to the right clip (with some selecting the folder isn’t enough you have to actually go right to the exact file to choose). It turns out for some reason the clips were linking to an xml file which was telling premiere the clips were in a folder that didn’t exist so then premiere was linking to a different folder I had with single clips i had exported to colour grade.
For example my project folder > another folder > project folder >file.xml whereas the actual path was my project folder > another folder > videoclip.mov

Hope this helps someone as I thought I was going to have to re cut my files.