When creating an analysis in Business Author (on Web Player), the .shp-file is the only one actually uploaded to the Web Player, and therefor data from the other files in same folder (such as .dbf, .shx, etc) is not present in the analysis, even if they are located in the same folder location.
This is a current limitation for the Web Player, and unfortunately we were not able to find a way to create a .shp file that contains all the data from the different files.
Note that this does not happen with the Analyst client. Thus the workaround is to load the data using the Analyst client and save into the library, then analyse the saved data from the Web Player
Please add this feature for the Web Player as well, so Business Authors could load shape files data fully onto Web Player.