Option "single" doesn't work in "project.conf"

[morevnaproject]

Contents of project.conf:

[main]
active_profile=full-hd

[full-hd]
WIDTH=1920
HEIGHT=1080
FPS=24
FORMAT=png
AUDIO_RATE=48000
blender.cycles_samples=75
blender.packet_size=10
single=1

Trying to render Synfig file -> no render result in target directory:

konstantin@master:~$ renderchan /home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/captions/03.sifz  
RenderChan initialized.
Warning: The "locale" directory isn't configured for localization.
. Analyzing file: projects/2017-03-10-crowdfunding-morevna-2/captions/03.sifz
Rendering: 0.0
synfig(26164) [11:31:11] информация: rendering threads 8
 synfig(26164) [11:31:11] информация: Загружается модуль из /tmp/.mount_cl6NBP/usr/etc/synfig_modules.cfg
 synfig(26164) [11:31:11] информация: Loading lyr_std..
 synfig(26164) [11:31:11] информация: Loading lyr_freetype..
 synfig(26164) [11:31:11] информация: Loading mod_geometry..
 synfig(26164) [11:31:11] информация: Loading mod_gradient..
 synfig(26164) [11:31:11] информация: Loading mod_particle..
 synfig(26164) [11:31:11] информация: Loading mod_example..
 synfig(26164) [11:31:11] информация: Loading mod_gif..
 synfig(26164) [11:31:11] информация: Loading mod_imagemagick..
 synfig(26164) [11:31:11] информация: Loading mod_magickpp..
 synfig(26164) [11:31:11] информация: Loading mod_mng..
 /tmp/.mount_cl6NBP/usr/bin/synfig: предупреждение: Невозможно найти модуль "mod_mng" (file not found)
 synfig(26164) [11:31:11] информация: Loading mod_noise..
 synfig(26164) [11:31:11] информация: Loading mod_filter..
 synfig(26164) [11:31:11] информация: Loading mod_ffmpeg..
 synfig(26164) [11:31:11] информация: Loading mod_bmp..
 synfig(26164) [11:31:11] информация: Loading mod_dv..
 synfig(26164) [11:31:11] информация: Loading mod_png..
 synfig(26164) [11:31:11] информация: Loading mod_ppm..
 synfig(26164) [11:31:11] информация: Loading mod_openexr..
 /tmp/.mount_cl6NBP/usr/bin/synfig: предупреждение: Невозможно найти модуль "mod_openexr" (file not found)
 synfig(26164) [11:31:11] информация: Loading mod_jpeg..
 synfig(26164) [11:31:11] информация: Loading mod_libavcodec..
 /tmp/.mount_cl6NBP/usr/bin/synfig: предупреждение: Невозможно найти модуль "mod_libavcodec" (file not found)
 synfig(26164) [11:31:11] информация: Loading mod_yuv420p..
 synfig(26164) [11:31:11] информация: Loading mod_svg..
 synfig(26164) [11:31:11] информация: Loading file: /home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/captions/03.sifz
/home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/captions/03.sifz ==> /home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/render/project.conf/profiles/1920x1080.full-hd/captions/03.sifz-0-99.png: DONE
 synfig(26164) [11:31:11] информация: Render broken up into 1 block 781 pixels tall, and a final block 299 pixels tall
 ====================================================
  Synfig command returns with code 0
====================================================
Rendering: 100
Rendering: 100.0
Rendering: 0.0
synfig(26208) [11:31:12] информация: rendering threads 8
 synfig(26208) [11:31:12] информация: Загружается модуль из /tmp/.mount_dtcY7U/usr/etc/synfig_modules.cfg
 synfig(26208) [11:31:12] информация: Loading lyr_std..
 synfig(26208) [11:31:12] информация: Loading lyr_freetype..
 synfig(26208) [11:31:12] информация: Loading mod_geometry..
 synfig(26208) [11:31:12] информация: Loading mod_gradient..
 synfig(26208) [11:31:12] информация: Loading mod_particle..
 synfig(26208) [11:31:12] информация: Loading mod_example..
 synfig(26208) [11:31:12] информация: Loading mod_gif..
 synfig(26208) [11:31:12] информация: Loading mod_imagemagick..
 synfig(26208) [11:31:12] информация: Loading mod_magickpp..
 synfig(26208) [11:31:12] информация: Loading mod_mng..
 /tmp/.mount_dtcY7U/usr/bin/synfig: предупреждение: Невозможно найти модуль "mod_mng" (file not found)
 synfig(26208) [11:31:12] информация: Loading mod_noise..
 synfig(26208) [11:31:12] информация: Loading mod_filter..
 synfig(26208) [11:31:12] информация: Loading mod_ffmpeg..
 synfig(26208) [11:31:12] информация: Loading mod_bmp..
 synfig(26208) [11:31:12] информация: Loading mod_dv..
 synfig(26208) [11:31:12] информация: Loading mod_png..
 synfig(26208) [11:31:12] информация: Loading mod_ppm..
 synfig(26208) [11:31:12] информация: Loading mod_openexr..
 /tmp/.mount_dtcY7U/usr/bin/synfig: предупреждение: Невозможно найти модуль "mod_openexr" (file not found)
 synfig(26208) [11:31:12] информация: Loading mod_jpeg..
 synfig(26208) [11:31:12] информация: Loading mod_libavcodec..
 /tmp/.mount_dtcY7U/usr/bin/synfig: предупреждение: Невозможно найти модуль "mod_libavcodec" (file not found)
 synfig(26208) [11:31:12] информация: Loading mod_yuv420p..
 synfig(26208) [11:31:12] информация: Loading mod_svg..
 synfig(26208) [11:31:12] информация: Loading file: /home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/captions/03.sifz
/home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/captions/03.sifz ==> /home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/render/project.conf/profiles/1920x1080.full-hd/captions/03.sifz-100-120.png: DONE
 synfig(26208) [11:31:12] информация: Render broken up into 1 block 781 pixels tall, and a final block 299 pixels tall
 ====================================================
  Synfig command returns with code 0
====================================================
Rendering: 100
Rendering: 100.0
Merging: /home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/render/project.conf/profiles/1920x1080.full-hd/captions/03.sifz.png
/home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/render/project.conf/profiles/1920x1080.full-hd/captions/03.sifz-0-99.png


Execution time: 00:00:02 

Cache closed.
konstantin@master:~$ ls /home/konstantin/projects/2017-03-10-crowdfunding-morevna-2/render/captions/
konstantin@master:~$

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