Casting Audio without video x265 videos using CC

When casting to a TV using Chromecast (with the latest Chromecast version and VLC 3.0.21) using Playback > Renderer, VLC media player only casts audio with a black screen to any device. The video files exhibiting this issue appear to be .mkv x265 files; all other files cast correctly. Fix found: While the screen is black on the casting device (only audio currently being cast), I can, oddly, go to Audio > Audio Track > Disable; upon immediately re-enabling an audio track after disabling it, the video and audio are then cast to my display, not just the audio.