File Save As Not Supported SLDDRW to PDF

When I want save a drawing to PDF sometimes I got the message File Save As Not Supported.

Try again and the second time with action File --> Save As --> Save as type: PDF the drawing will be saved as PDF without the message File Save As Not Supported.

Does anyone have an idea what could be the cause of that message?

Workstation: HP Z2 Tower G4

SolidWorks 2017 SP4.1 on Windows 10 Pro

Best regards,

Ruud-Jan de Boer

SolidworksImport/export