When the yaapu widget (1.9.6dev) is configured and run for the first time on a new model in EdgeTx, the yaapu widget screen cycles between the main/HUD screen, and two popup message screens each reading 'initializing.' and 'loading layout.'
I have been speaking with Alex (yaapu), and have figured out a work around for the script issue running under EdgeTx 2.7.0 or newer.