Andrew,
GG had a chance to look at this and it appears that something like a "cut" is happening at the same time as a "play".  It appears to be a Lock problem that he can hopefully fix.  So apparently it is "Two Steps From Hell" for sure (ha, ha).

On Fri, Jun 5, 2020 at 8:45 AM Andrew Randrianasulu <randrianasulu@gmail.com> wrote:
Hello, I tried to edit simple  video in CinGG

Bascally put video track over music track, taken from two
separate videos, downloaded from Youtube.

videos:
https://yadi.sk/d/-9mV7v-4dZ8l7Q

Unfortunately, when I opened both files as 'resources only',
loaded them both on timeline by drag and  drop from Resources window
deleted unneded video and audio tracks and tried to trim audio from
Two\ Steps\ From\ Hell\ -\ Star\ Sky\ \(\ EXTENDED\ Remix\ by\ Kiko10061980\ \)-KgQCgqUe3LE.mp4
by selecting sound region at the tail of project  and hitting 'del'
(I also tried to select same action from menu)

I got hang! I mean I can't press anything in main window, or anywhere in Cin.

I can repeat few times and it will hang reliably.




 cin
Cinelerra Infinity - built: Jun  3 2020 09:43:41
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
FileSystem::update /home/guest/MLP FIM 3 Karusel Нет такого файла или каталога
FileSystem::update /home/guest/MLP FIM 4 Gala Нет такого файла или каталога
FileSystem::update /home/guest/MLP_FIM_Season4 Нет такого файла или каталога
FileSystem::update /home/guest/MLP FIM 5 RUS ENG 720p Нет такого файла или каталога
FileSystem::update /home/guest/My Little Pony - Friendship is Magic S02 720p Нет такого файла или каталога
FileSystem::update /home/guest/MLP FIM 1 Karusel Нет такого файла или каталога
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/KARA (Quantic Dream) [HD]-wxVyeSfE6p8.mkv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/KARA (Quantic Dream) [HD]-wxVyeSfE6p8.mkv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/KARA (Quantic Dream) [HD]-wxVyeSfE6p8.mkv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/KARA (Quantic Dream) [HD]-wxVyeSfE6p8.mkv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/KARA (Quantic Dream) [HD]-wxVyeSfE6p8.mkv
FFMPEG::open_decoder: some stream times estimated: /home/guest/New_hdd/KARA (Quantic Dream) [HD]-wxVyeSfE6p8.mkv
** seek fail 12474, 416215
** seek fail 12474, 416215
** seek fail 12474, 416215
** seek fail 12474, 416215
** seek fail 12474, 416215
^Csignal_entry: got SIGINT my pid=2970 execution table size=0:
** intr at 0xf7b3e829 in pid 2939, tid 2939
writing debug data to /tmp/cinelerra_2939.dmp
signal_entry: lock table size=1
lock_items: 0
lock_frees: 1
SigHandler::signal_handler total files=0
lock_items: 25
lock_frees: 3
^C

Once I got

cin
Cinelerra Infinity - built: Jun  3 2020 09:43:41
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
FileSystem::update /home/guest/MLP FIM 3 Karusel Нет такого файла или каталога
FileSystem::update /home/guest/MLP FIM 4 Gala Нет такого файла или каталога
FileSystem::update /home/guest/MLP_FIM_Season4 Нет такого файла или каталога
FileSystem::update /home/guest/MLP FIM 5 RUS ENG 720p Нет такого файла или каталога
FileSystem::update /home/guest/My Little Pony - Friendship is Magic S02 720p Нет такого файла или каталога
FileSystem::update /home/guest/MLP FIM 1 Karusel Нет такого файла или каталога
Assertion fctx->async_lock failed at libavcodec/pthread_frame.c:155
Аварийный останов                                                                                                                                                                                         

but this may be due to ffmpeg from git.. ...

I can try to recompile CinGG with ffmpeg 4.2, but it will take some time

I also tried few previous version of CinGG
 from May and they also hang on those files if I repeat same actions

I can workaround this by trimming audio before
adding video, but then edit will be unprescie ...
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