Having reverted RW to 7.3.x one project worked fine. The other project however still gave the same errors … even after restoring a backup of the project file prior to trying the beta. Is it possible there is some installation file that doesn’t get replaced when restoring the original app?
I should point out that I live out in the sticks so my internet is particularly slow and intermittent so maybe this is exacerbating the beta issue … curiouser and curiouser