Can't create a libray

Hello,why can’t I add a single mkv file to the library?They could be played smoothly, but can’t stay in the library as they do in the iOS version.

Hello,I added a very large file to the infuse and it suddenly disappears.can’t find it anywhere!

Is this on macOS?

Currently, you can place videos in the ~/Movies/Infuse folder to have them appear in the Library.