When clicking 'Expand this site' and using the scanner to add another ore patch to an existing entry, it creates a new entry/site instead. I remember it used to work years ago but I can't seem to actually expand a site with this button anymore. Am I doing something wrong? Yes, I'm trying with the same type of ore that is the existing site.

I've had the same issue since I started playing with mods in 2020. I've never got the "Expand this site" working. Always creates a new site. Really wish there was a way to merge all the depleted oil wells so that I can keep track of how many I got in total, but not have the warning list filled with them.