Hi Chris_K
I have set up two master pages one a frontpage and one for every other page of a newsletter. I have not put any frames on the master pages other than background on both and items specific to the frontpage. I go to the normal pages and all appears well and they show as per the masters. I insert a text frame onto the frontpage and set it to two columns, insert holding text, all seems fine. I select the text flow arrow head as you have shown, and go to the second page. On opening the page the backgound frame is selected and the text will only flow into there, it will not let me draw a text frame. I am wondering if this is something I am doing from PPX which behaves differently in AffinityPub. Don't know if the pictures help as they don't really show a lot.
Dave Wilcox