On North theme, I set the 2x retina logo image.
When in responsive view, this logo is being output in the frontend as an img tag to trigger the mobile menu, which is unexpected behaviour.
I then see 2 logos on the screen. The original one, and the 2x one which has replaced burger menu.
I looked through Customizer but couldn’t see where this could be set.
You can see it at https://meetami.wpshala.com
Setting was made in ‘icons’ and I didnt think to look there! Solved.
Glad to hear you made progress, thanks for updating here. Chat soon, cheers :)