In the app I’ve just built with SAB 8.6.3 none of the parallel passage references (\r) are tappable. Paratext recognizes all of these lines as links, but the app does not. I tried adding, e.g. “|LUK 3:23” after the reference but that didn’t help. Is there something I need to do to enable the \r lines to work as links?
I’ve had this happen when SAB expected a different Chapter-Verse separator than what my Paratext project uses. To check this, with your book collection selected, go to the Features tab and look for the “Chapter-Verse Selector” line. In my case, SAB was expecting a period, but the Paratext project was using a colon.