Im using yaapu script (2.0.0beta2 dev)with tx16s on Edge Tx 2.8.0. I ve experinced that the script sometines stuck in the initialization. I had to go into widget setup to start it loading.
FW arduplane 4.4 dev
Found this post about similar issue here: Yaapu telemetry repeat initialization
Yaapu stuck in initializing - YouTube