Balto

I think I have found a solution for this, in case it can be useful for other users searching for this.

We can "duplicate" all the blocks you want to be shown in the sidebar in the desktop view, but in a higher position in mobile view, by duplicating the blocks and using the "Visibility" options:

Hello,
 
I'm not sure exactly since when this started, but Facebook and Instagram embed posts are not working on my website:

 
Twitter works fine. Instagram throws the same error Facebook does, and if I copy the embed code I see an empty Instagram post:
 

What should I do to fix this? I have read the guide here, but I do not see this option available on my Facebook App:

 
Thank you in advance!