I've tested it and here is a course of events from when i open a solo project to the problem occurs.
- After i open i retrieve a PMID. The first time i do the it only have the number #0 for a second or 2.
- I then add another PMID (only one at a time). This time it has the number #0 for several minutes but then changes into the right number.
I've the tried to add more than one file (3). After importing (PMID) all the files had the number #0. This did't last for long then, before they got the right number (10-20 sec).