https://bugs.kde.org/show_bug.cgi?id=364891

--- Comment #1 from Jean-Baptiste Mardelle <j...@kdenlive.org> ---
Sorry for the delay. This is in fact not really a bug but a problem in the way
Kdenlive (and MLT) handles alpha transparency and transitions. Title clips use
antialiasing to provide smooth edges.

However, currently to be displayed correctly in Kdenlive / MLT, an image with
alpha transparency must have a transition attached to it. In your project, the
title has a composite transition, which is correct.

Now the problem here is that transitions in Kdenlive cannot be applied on an
empty track. In your project, you have the title clip on top track, and the
transition is applied with the track below, which is empty - reason why it does
not work.

So to solve your problem, you must either:
* put a clip on the track below your title
* change the transition parameters (the track parameter) to apply transition on
the background black track (in the "track" combobox, select "black"). this will
make the transition work and text will look fine.

I am well aware that this behavior is confusing and problematic and have been
working on a solution to make transparency correctly handled by default. I hope
to introduce that for the 16.08 release in august.

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