Text Box not filled with data correctly, sometimes yes - sometime no

    Text Box not filled with data correctly, sometimes yes - sometime no

    Hi there, i have a strange Problem since some weeks:
    I use Jedox 6, with Server, with Excel-Frontend. In the Excelreport i have "Formulare" with textboxes which i fill per VBA with data from the Jedox-server-DB, for example i can select a Product with a listbox, an then in texboxes appears Attribute-values of this Product.
    Normaly this work without any Problems (for years), now sometimes, this textboxes show nothing, if i open the formula maybe 10 Minutes later, they appears,... some times, they show the correct data (as it is on the DB) sometimes it's empty..
    In an excelview on the attributes, it's always correct, only in textboxes of a Formular is this Problem.

    The system-administartor says there are no network-Problems (client-Server)...

    i changed the Excel-Option / advanced - "Hardwaregrafik Beschleunigung(acceleration) on "deactivated", but no improvement

    Has anybody the same Problem ? Thank's for any help !
    Kind regards