Also have this problem (it's been there as long as I can remember):
1) Generate any figure in Matlab
2) Copy figure via gui, or 'print -dmeta'
3) Paste into evernote: nothing happens
Paste into word, powerpoint, mspaint etc. works. Probably something to do with windows enhanced metafile format (emf) - the image remains as some sort of vector graphic (can be seen if posted into inkscape for example), and -dmeta is the flag for printing emf more generally.
Definitely niche, although I guess it's not just a Matlab specific problem.
Recent Matlab versions actually en