Installation guide did not mention that ffmpeg binaries need to be installed and the python error message doesn't make it clear that these need to be installed.
Please note that these need to be downloaded and the corresponding bin folder added to your PATH. Otherwise when the tool attempts to render a playback video from the generated stills, some C-api call crashes and the SD-CN-Animation tab goes into a bad state until exiting. (For example the buttons are locked in a unusable state.)
(I am using Windows 10)
Installation guide did not mention that ffmpeg binaries need to be installed and the python error message doesn't make it clear that these need to be installed.
Please note that these need to be downloaded and the corresponding bin folder added to your PATH. Otherwise when the tool attempts to render a playback video from the generated stills, some C-api call crashes and the SD-CN-Animation tab goes into a bad state until exiting. (For example the buttons are locked in a unusable state.)