I'm seeing lots of re-rendering bugs in draw with display dirt everywhere; to reproduce:
I start draw - I draw a black line; I enlarge it's width I now drag it around the sheet: it disappears. Force re-rendering the whole scene renders it again but ... wow that's not optimal :-)
I've seen similar behavior for other bits when loaded.
I draw a rectangular box - it should be blue filled: but I see only the outline, oddly I see the correct box in the preview on the left. When I force re-render it is back, but dragging it around the document the content disappears again.
I'm seeing this with master to be fair not 4.0.0 but I assume it applies there ;-)
I can not see this issues with:
LibreOffice Version 126.96.36.199 (Build ID: 2ef5aff)
LibreOffice Version Version 188.8.131.52.beta1 (Build ID: 87906242e87d3ddb2ba9827818f2d1416d80cc7)
Even changing the options in Graphics Output, for hardware acceleration and/or anti aliasing.
Interesting - quite likely this is linux-only then; just adjusting that - thanks for trying ! :-)
I'm also unable to reproduce this bug.
Version 184.108.40.206.beta1 (Build ID: 87906242e87d3ddb2ba9827818f2d1416d80cc7)
Ubuntu 12.04, Intel Atom N450, Graphic: Intel® IGD x86/MMX/SSE2
I've also changed the Graphics Output options.
What's your graphic card? What driver do you use? Maybe try to switch between the open / closed source ones.
Do you have any other graphic problems in other applications?
Can't reproduce now either myself - must have been some horrible transient partial build error.
Thanks guys & sorry for the noise :-) [ I'm using Intel so no driver problems I hope ;-]