Amid continued fan speculation that Outer Banks stars Rudy Pankow and Madison Bailey had a falling out, the actress posted a throwback photo that included her costar. Madison took to Instagram on Thursday,

Outer Banks just finished its fourth season with a very big death. The show, which follows the lives of John B. (Chase Stokes), Sarah (Madelyn Cline), Kiara (Madison Bailey), JJ (Rudy Pankow), Pope (Jonathan Daviss),

As rumors continue to swirl that Pankow and Bailey — who play JJ and Kiara in the Netflix series, respectively — have had a falling out, a source exclusively tells PEOPLE they are not feuding, despite ongoing fan speculation.