🚀 go-pugleaf

We're trying to add a new text flow (call it Flow B) to an existing set of documents that currently has only one text flow (the ubiquitous Flow A). 

We've tested the new multiflow master pages, and they work (more or less) fine in new documents. (The Autoconnect feature doesn't seem to work as advertised, and so we need to connect flows manually when adding pages in the middle of a document.) 

But when we try to copy or import the multiflow text (Flow A, Flow B, or both) into the legacy documents, we get a real mess: new pages are added with the correct master page, but only one of the Flows is brought over correctly. 

Trying to copy the two Flows directly into their respective text frames sequentially (i.e., Flow A, then Flow B) results in the addition of even more outlandish pages. 

Our attempts to fix this using the Connect Text Frames function have also met with frustration. 

Can someone point us to a solution, or at least help shed some light on importing multiple flows into single flow documents? 

My thanks in advance for any information.