Update.
As suggested by another Member in a private Message. I have copied the AAF filter from N5.5 and replaced it in N7. This at first (it seemed) did not work. But if I lengthed the timeline. The audio was displayed correctly, and no annoying repeating audio.
Still clipping some audio, but I can handle drag out the handles to reveal this. But most importantly no need to resync audio.
Hopefully this will give Steinberg some hint on how to fix this properly. Please PM me if I can help.