Yes, the duplicate remain if i save the file, refresh the webpage, or load the program again! But in the meantime I figured out the solution. Just right click to block and disable.
@hunterpark Yes. I am Facing same issue. each time we need to modify and run. after restarting UIflow again reset back default. I want to modify existing code to rectify as temporary solution. but it is bunch of JScript code and didn't understand how to proceed further.
I get a new API key on the M5Paper when I erase it (edit: using the erase button in the upper right of M5Burner) and then burn the firmware again. Would be easier to have a working button, though :)