Download pdf from DTPO web server with Safari 12.01

Hi folks,
maybe its just me but it is impossible to download any pdf file from an online Dbase (DTPO 2.10.2) via Safari v12.01 running on different Macs macOS 10.12.6. AFAIK the last changes on this machines are the 10.12.6 security updates.
I can press download from the menu but nothing happens. Also no-go: directly from the pdf window when hoovering with the mouse on it.
Using the same Dbase from within Firefox all works fine (but FF isnt installed on all Macs and I wouldnt like to do).
So, any hints and suggestions to solve this problems are welcome :smiley:
Thanks for reading.

Which menu did you use? Did you try the “Download” toolbar item?