When a video filename uses international characters, such as accentuated characters, Oneclick encoder will fail creating the AVS file.
The job creation is aborted.
This behavior appeared in a recent update of the stable release and is not corrected in the dev version.
Although there is a turn around (not use international characters in filenames), this is very annoying for the user and may divert newcomers to adopt meGUI.
Maybe you can test the new version from here : https://github.com/Kurtnoise-zeus/megui/releases
O_o. Is this some kind of fork? Or the dev moved to there?
Kurtnoise was a old dev than return to work for the comunity.
The new MeGUI-6666 replace the old MeGUI 64 bits.
possibly need to change indexer here and to update avisynth