Andrew, we have been trying to crash all day long and GG is now reverse engineering the assembly code in the dump on a 32-bit system -- that is how desperate he is becoming !
Hopefully, this additional dump, session file, and Cinelerra_rc will help.  So thanks.

On Mon, Sep 14, 2020 at 4:28 PM Andrew Randrianasulu via Cin <cin@lists.cinelerra-gg.org> wrote:
Sorry, still crashing ..

I cut video into four parts, each on its own track, and tried to add some transitions.
After I added circle ("shape wipe") and tried to play it back and forth by draggin vertical playback line - Cin crashed

DRI_PRIME=1 LANG=ru_RU.utf8 cin
Cinelerra Infinity - built: Sep 14 2020 05:20:48
git://git.cinelerra-gg.org/goodguy/cinelerra.git
(c) 2006-2019 Heroine Virtual Ltd. by Adam Williams
2007-2020 mods for Cinelerra-GG by W.P.Morrow aka goodguy
Cinelerra is free software, covered by the GNU General Public License,
and you are welcome to change it and/or distribute copies of it under
certain conditions. There is absolutely no warranty for Cinelerra.

RenderFarmClient::main_loop: client started
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/Flipper, Norwegian Dolphin chilling in the harbor.flv
** segv at 0x870a298 in pid 10289, tid 10289
writing debug data to /tmp/cinelerra_10289.dmp
lock_items: 26
lock_frees: 6
** dump complete
Ошибка сегментирования

Added backup.xml and Cinelerra_rc
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