Problem casting mkv to Chromecast

iPhone X
IOS 13.3 (17C54)
Infuse Pro 6.2.5 (2888)

When I try casting .mkv files to Chromecast I get this error message:
Not available for this video type.

Is there any solution to this?
This dampened my enthusiasm about Infuse a bit since Infuse’s description on the App Store mentions mkv.
These mkv files do play on my iPhone, but they don’t cast to Chromecast.

The files I’ve tried were:
Pajaros de verano (2018) @CanalesLocos.mkv

See attached images for technical details about these 2 video files.
They’re a screenshot from VLC’s Codec tab.

6 posts were merged into an existing topic: Stream x265 videos to Chromecast