Dear Andres,
did you use the StatisticsOp from GPF to retrieve these statistics? If so, can you show me the command and/or the xml graph that you used?
Best,
Tonio
The StatisticsOp is an operator you can run from the command line. You can run it by executing the gpt-file in the bin directory of your SNAP installation. Type gpt -h or look up the entry on the Command Line Interface in the Help for more information on that.
Regarding your issue: I think I found the problem. It seems that all the relevant entries are there, but they are written out multiple times (29 times to be exact, so you end up with 29*29=841 entries). Can you confirm this please? If this is the case, the fix will be included in the next module update.