I hope, I can explain my problem in an understandable way:

Normally, after having written and booked invoices, I press print button, OEP system processes this request and finally, opens a dialog asking if I want to open or to store the generated invoice report. So far, so good...

But sometimes, it only processes and then stops without opening this dialog for opening/storing. There are days, where I can simply repeat my request, and after some tries, I get my printed invoice, but there are also days, where repeating my request is not enough. Then I have to leave my invoice by clicking some other function inside system, then returning to my invoice and then I can get the report.

Could you tell me your experience with that? Any known bug? Any advice, what I can do?