Issue with Android MESH app when adding a device

[SmnTech]

I could build ESP-MDF's light_bulb app and flash the same on ESP32 devices. I could then scan these devices through Android "MESH" app runnng on my Phone. Before adding the light_bulb device through the MESH app, it requires Router Wifi credentials. But after entering the credentials (SSID/Password) and clicking "Next" button, the "MESH" app stucks and doesn't seem to operate further.

[Sam_liyin]

Thanks for reporting the issus.

Does the issus stable recurring? If it is, can you provide the screenshot when the issus happens?
By the way, the latest version of Mesh App is provided: ESP32 MESH for Android