I had the same issue, in $my_sections_args for the hook parameter I changed the value from __before_main_wrapper to the default value __after_main_wrapper, and it worked again, not sure what the issue is but it is working again. I hope it works for you too. Merry Christmas!
How did you accomplish this? I just add the img tag and the correct address to the image but it does not appear at all. I would appreciate any help with this. Thanks.
Found the issue. Thanks !!
