For quite a while now my RSS feed configuration was like this:
G+ -> pluss.aiiane.com -> Feedburner
Since G+ is no longer, I have updated my feedburner back to pointing at the normal Blogger feed. Although I doubt anyone really still monitors that feed, if it makes your aggregator angry, I do apologize :P.
I expect that my Feedburner settings have been about the same since Google Plus and the pluss turner-arounder were young, or at least as far back as my journal's migration to G+.