There is a tiny Vex gatway/portal-looking thing making noise near the landing zone for the Cistern. It is possible to stand on this tiny thing and hover a bit, and the particle effects are just orange squares.
(The orange error code is not involved, but I can't edit out the link that auto-creates for the word "orange".)
Images: [url]https://ibb.co/qdp3nJ4[/url] ; [url]https://ibb.co/9GMyyvF[/url]