Dear Qt Maintainers, The jessie backport of twinkle has been found to abort with a segmentation fault in the DRI driver under certain circumstances.
Since the segfault has been produced with both the nouveau and the i965 driver, and since noone has reported a similar issue with twinkle in stretch, it is likely triggered by the version of Qt5 in jessie. Please refer to the bug log for a stack trace of twinkle. Regards, Peter