Hyperion Planning - Invalid Form

@Descendants

Hello all,

Recently we have been having a problem with one form becoming periodically invalid in Hyperion Planing version 11.1.2.4.

This forms return no more than 50 rows and around 128 columns.

The way its build is that it uses a @Descendants on three dimensions and it suppresses the #Missing records.

When the Invalid Form error appears we do a restructure of the cube and the  error disappears, so there is nothing wrong with the form build.

Has anyone encourage this problem, any idea how to avoid it appearing ?

Thank you in advance