Linked to the post where I ran across this; it should come down to styling or delegating the right html elements to pub titles embedded in comments. Here are a few screen shots:
It appears that the embedded post loaded a full on iframe
<a href="https://hubski.com//pub/252093">Discuss this on Hubski.</a>
Looks like we were missing some styling in the office stylesheet, hopefully it's fixed now (might have to clear your cached css).
I've encountered that some, it's generally when hubski is under heavy load and a refresh generally fixes it. That link loaded fine for me on mobile.