Hello Nikeo
I have this same issue and for the life of me cannot resolve it.
I have read and read your post above “Can you try to uncheck the option in customizer > Responsive settings?” but I can not identify where this setting is on my site?
I have V3.1.8.
I absolutely love the Theme I would just really really like to be able to add my Twitter feed.
If you could help me please I would be grateful
Thank you
Brian