Did you repost this or did someone else post about a similar issue? I remember reading about someone having an issue displaying images which began suddenly around January 22nd/23rd. That thread has been removed for some reason.
I also noticed an issue with the HTML component that stopped pulling images in our custom Twitter application on the morning of the 23rd. I still contacted Live Chat and they told me it was because Twitter changed their API. I believed them, but when I saw someone else had a similar issue starting on the same date (again, thread now gone), I began to have my doubts.
You are not alone, but it seems they don't want this issue to be heard.