I\'m having problems with the VectorDrawables introduced by the support library.
Looking around, I read about similar issues regarding bad scaling or incorrect preview i
Solution
After some more tries (and help from people), I've found the problem. The problem was with the fill-rule as other already experienced, but in the opposite way!
In fact, as far as I know, VectorDrawable uses the non-zero fill-rule and has rendering problems with SVGs exported with the evenodd rule. That's why I've always used the non-zero rule. Turns out that using the android:fillType="evenOdd" one solves my problem.
I don't know why, and at this point I'm too afraid to ask.