When applying an "alpha shapes" effect to a track (as opposed to fixed bug 375338), then the effect parameters don't get correctly initialized to their default values, but instead all are reset to 0. Compare with the default values when applying the same effect to a timeline clip. Fortunately, users can change the parameters and these are correctly saved, so this just annoying at the moment.
Git commit 3e5598b2a4c7be2816cb2f3be624b11248114df9 by Jean-Baptiste Mardelle. Committed on 26/03/2017 at 09:11. Pushed by mardelle into branch 'Applications/17.04'. Fix some effects incorrectly initialized on tracks M +6 -3 src/mltcontroller/effectscontroller.cpp https://commits.kde.org/kdenlive/3e5598b2a4c7be2816cb2f3be624b11248114df9