Hello,

I ran into this issue also.  Try the steps below as they worked for me:

1. Keep the original somewhere in the repository (ex: master.pdf in folder A).

2. Make a 'search repository' activity and narrow it to the folder A and file name: master.pdf (as above).

3. Make a copy of same to a desired location (don't move the file).

4. On the 'fill out pdf form' activity, choose 'Other Entry' and point to activity 3 above.

This should correct it.