Matrix Box problem

paszigor

Hello Everybody,
I have a problem with "Analyses by Dimensions" form (and all this type). When I fill something in Date Filter field (second tab of header) on the rigth side of matrix box all headers disappear. When I delete Date Filter in headers I receive proper dates. This error occurs when "Show as Columns" field is Period, it does not depend on period type. I saw this error only when I press a key on any column on right side of matrix except first one, and next I close the form and open again. Then after fillig date filter this error occurs.

Best Regards
Igor Pasz