I was on for a little while this morning, everything was pretty normal. I ended up logging for a little while. Came back a little while after the update and was on a while before I started to notice that expeditious retreat didn't work.
At first, I thought I was perhaps bugged, so I rested and recast, then relogged and recast. Still not a thing. Also then tried logging for a bit, still not a thing. I started asking about some to other to try but they all reported it to be working just fine.
As far as I can tell on my end it says its casting, and then casts, but the spell icon never appears, nor does it appear on my character sheet.