Cannot activate Earth Obelisk. The (X) button doesn't appear on screen to open obelisk menu in order to activate it. There were at least 4 to 6 other guardians around that seemed to have the same issue. Not sure if this issue has already been posted and if it has, is there a timeline on a fix?
This is a known issue. There was meant to be a hotfix today to address it, but unforeseen circumstances delayed it. In the meantime, you will need to keep traveling to The Gulch until it lets you interact with it.