Have made some progress regarding the permalinks…the GYM – Sport WordPress Theme developed by CoralixThemes was again the culprit as the “Styles pages configuration zone” didn’t reflect what was actually happening on the front-end. As a result, the Home Options was still being applied for some ridiculous reason instead of “no-style”, and within that options’ configuration was a setting pointing to the Plain Name, and not the Post Name.
So now the only issue still outstanding is the fact that the theme does not update the “Styles pages configuration zone” accordingly and CoralixThemes have no support channels available anymore – I think they’ve gone bust.
Any possible suggestions?