Yesterday, upstream released a new version that solves a lot of known problems. Paul Wise has worked hard and has prepared the new package. (Thanks for your work!!!)
Now, we need your help testing this new version. You can install the new packages (version 0.61.06-1), test them and report bugs.
At this moment, we have two bugs (#370461 and #370459) blocking it and we are waiting your bug reports to know if we can close them.
You could find a lot of samples on Synfig samples page, but maybe you want to test it with a Debian related animation!