We just noticed the same thing in our research group. I really hope Qualtrics will fix this, it's so important to use this workaround when dealing with many embedded variables... :(

I'm having this same issue! I submitted a ticket but am not holding my breath. I tried refreshing my account, clearing cache, all the usual stuff they ask you to do as part of troubleshooting, to no avail. I need to get this thing out in the world and can't until I can get this embed to work.

...and it's working now. Guess they got the message.