Hi, In 1 of our forms some of the data grids occasionally stay empty, while data should be displayed. The form contains several tabs that are conditionally visible based on role. Each of the tabs contain 1 or more (max 3) datagrids with complex xpath statements. The form seems to work fine, only in cases where users have multiple roles e.g. 4, causing 3 or 4 tabs to be displayed, some of the tabs display empty datagrids. Depending on the sequence of opening the tabs, the last one opened seems to encounter the issue. We can apply workarounds (like using separate forms instead of tabs etc...), however I am interested in knowing why this issue occurs and whether there are possibilities to resolve it without having to split up the tabs in separate forms. Thanks. Brian