Getting warning message: Unexpected inner content: "/hinode-template/content/path/file.md:24:1"

[anoduck]

Not sure what I buggered up on this one, but below is my card group, I wanted each card to display a thumbnail of a video, and link to another page that has the video on it with a description. It will build the site, but displays a warning message for each card in the group.

WARN  Unexpected inner content: "/hinode-template/content/path/file.md:24:1"
WARN  Unexpected inner content: "/hinode-template/content/path/file.md:22:61"

Below is the card group in question, which is the cause of the warning message.

{{< card-group cols="2" gutter="1" >}}
	{{< card path="/path/link1" thumbnail="https://res.cloudinary.com/user/image/upload/image1.jpg" />}}
	{{< card path="/path/link2" thumbnail="https://res.cloudinary.com/user/image/upload/image2.jpg" />}}
{{< /card-group >}}