Empty Info Parts

Hi all,
we have a strange behaviour with our Info Parts. If i open a form (e.g. CustTable) and immediately click beside the form (so the CustTable form disappears in the background) then some/all Info Parts are empty. If i wait until the form is displayed everything is ok.

Is this a bug? Is there a workaround or something? Maybe hide it via code and then display it after a few ms or something?

Thanks in advance,
Frank