Created attachment 124193 [details] messy screen Inser math formula in to writer become messy screen
fully display math formula interface as openoffice, that will be fine.
What build of Windows OS and graphics card in use? Any cleaner for you if you turn off OpenGL rendering?
On Windows 10 Pro 64-bit en-US with Version: 5.1.2.2 (x64) Build ID: d3bf12ecb743fc0d20e0be0c58ca359301eb705f CPU Threads: 8; OS Version: Windows 6.19; UI Render: default; Locale: en-US (en_US) confirming that OLE launch of the Math module while editing an embedded OLE formula has visual glitches with inactive elements from the Sidebar being drawn on the Math canvas. Glitch occurs with either OpenGL rendering, or default graphics.
windows 7 x64 sp1 NVIDIA Quadro K600 I turned off OpenGL rendering.
*** This bug has been marked as a duplicate of bug 96451 ***