Some time ago soundcloud links automatically produced an embedded player when added to a question or an answer. Very handy to answer pronunciation questions on the site, which are not uncommon.
An example of this feature working is this answer to RAE pronunciation question, which works and looks like this for me today:
Today, I created a new answer to the question of how cohiba is pronounced, but the link appears in the answer, not the expected embedded player of the sound.
I changed the URL from https:// to http://, as suggested before, but to no avail.