Reproduction steps:
1. Create a new project
2. Switch Platform to Android
3. Make sure that "Autoconnect Profiler" is enabled
4. Open the Profiler Window
5. Build for Android
6. Switch from one USB device to another in the Profiler Window

Expected result: "Sending message header failed (0) UnityEditor.GenericMenu:CatchMenu (object,string\[],int)" warning is not outputted in the Console Window
Actual result: "Sending message header failed (0) UnityEditor.GenericMenu:CatchMenu (object,string\[],int)" warning is outputted in the Console Window

Reproduces on: 2021.2.0a1, 2021.2.0a14
Not reproducible on: 2018.4.34f1, 2019.4.25f1, 2020.3.5f1, 2021.1.4f1

Notes:
-Sometimes switching from the Autoconnected device to Editor and back in the Profiler Window outputs the warning
-Issue does not reproduce on Standalone Player when switching different builds