I run the function "Join attributes by location" in Qgis 2.2 between a point vector layer and a polygon vector layer. When I open the resulting table of contents of point layer there is a column of numbers (fields from 10 to 13) that fail, because there is the same value in every row. For example "-214", a value that does not exist in the overlay polygon shape. However, this column is the one I need for doing further process. Does anyone know what the problem could be? Any tricks? Perhaps problem of "encoding" systems is causing this?
Additional information: I tried with Saga process but in Qgis 2.2 there is no option for Saga folder in the configuration menu. I tried to change encoding (UTF-8, System) but the results is the same!