Quirk, bug or feature?

Having a directory called frames with 1723 images in it (frames extracted from a video with ffmpeg) and renaming DeepArtEffectsCli to dae (to save on typing)

This works…
.\dae artfilter -stylename Newspaper -input frames -output back

This doesn’t
.\dae removebackground -input frames -output back

rendering…
Can’t create an ImageInputStream!
For a help use “DeepArtEffects.exe help” or visit our Forums for a Guide.
Nov 23, 2020 8:27:22 PM com.deeparteffects.core.e.d a
INFO: Watching files matching [*.model] under C:\Users\simon.deeparteffects\assets for changes.
Nov 23, 2020 8:27:22 PM com.deeparteffects.core.e.d run
INFO: Starting file watcher service.

Super helpful plain an simple error explanation as usual

Thank you for reporting, it’s been forwarded to our developer. We are looking at this behavior.