Yes. The ui nodes were pushed down versions. I said it's ui bug because they are not available in the version its displayed. By the fixed, I mean that it is available in a version ahead / of the version at which that event was made. The ruins one is in V69. I currently do not have an good internal api to display which version is which event right now. (I want to make one that supports more things so it's on to do) So if you cannot access some of the nodes, (and they do not have a note 'for supporters' like Halloween) then it's already done in one of the version ahead.
Sorry for the trouble and thanks for playing <3