tracker do not display every found files

Binary package hint: tracker-search-tool

Hi

I am on Ubuntu Hardy

When I do a research using the tracker-search-tool, for instance I search the word "music", it is said :
All files (8)
Documents (1)
Text (2)
Development (5)

When I click on "All files", there are only 2 files instead of 8, and it says "Result of the research : 1 - 7 of 7 items", so 7 instead of 2 or 8
When I click on "Documents", there is no file instead of 1, and it says "Result of the research : 0 elements"
When I click on "Text", there are 2 files, so that's okay with the number of files displayed, but these files are not the ones showed in the "All files"
When I click on "Development", there are only 2 files instead of 5 (files showed in the "All files"), and it says "Result of the research : 5 results". Why is the message different from the "All files" one ? It should not as there is only one page in both cases

Greets