Created attachment 127782 [details] Crash after pressing context menu "Fläche..." LibreOffice Draw crashed with a MessageBox showing: "LibreOffice 5.1 - Fatal Error" "Could not create system bitmap!" when using the context menu for "Fläche..." (see attachment).
Would it be possible you attach the example file? Otherwise, you may try to retrieve a backtrace (see https://wiki.documentfoundation.org/QA/BugReport/Debug_Information#Windows:_How_to_get_a_backtrace) You may also give a try to last stable LO version 5.2.2.
Following this email sent in private: "I worked around this issue and currently it doesn't fail. If it fails again, I will send you the Draw document. " Let's put this one to WFM (Works for me)