I found how to fix this. I had created the project manually in Cursive. I removed the project in Cursive, deleted the .idea directory, and imported the project as deps.edn external project - works now.

I like how it says that it “looks like HTML”, computer aint sure about that

That’s when the clipboard contains text from outside IntelliJ. If you cut from an HTML file within IntelliJ then it knows what it is and says “The clipboard content was copied from an HTML file” instead.