Yep!  Frequently!  And I've found that in the original CR2 or PP2 that the broker forgot to replace their working file location from their hard drive to the runtime (i.e., :runtime:libraries:character...).  I've had to fix a lot of these files myself.

Also, sometimes the CR2 or PP2 file points to a non-existent file such as a bump file (xyz.bum instead of xyz-bump.jpg).

Usually I do a search for part of the file name just to find the folder, then manually search and/or correct the problem.  In other cases I've had to create bump files when none were included.

Poser 2, 3, 4, 5, 6, 7, 8, 9, 10, Pro 2014, 11, 11 Pro