Premiere Pro CC2018 can't relink to graphic
I've got a project from CC2017 with a legacy title that has a png graphic in it. When I load the project in PP CC2018, I get a notification that the file has moved from the previous location (makes sense, the source file has moved). However, when I try to locate the file in the new location, and successfully locate it and try to import it, I get a window that says the import failed without any error code. I can delete the graphic and re-add it from the new location without difficulty, so it's not a problem with the file (which has been unchanged for years).
Here are screen shots:


This makes it impossible to pack up the project and take it somewhere else.
