soniktrooth As per https://forums.indigostack.app/d/61-wrong-site-served-when-multiple-sites-in-one-stack/19 I am using Indigo to serve Drupal 10 sites. There seems to be a reverse proxy issue though and if I don't add the port into the url I get a 502 Bad Gateway error. I just tried setting up a fresh stack to eliminate any old cruft and noticed that Drupal's db install page at core/install.php seems to work fine, but any other path throws the same error. This made me wonder if there was perhaps a module or something custom to the the site that wouldn't be running on that install page that could be causing the problem. I am seeing this with multiple D10 sites though.