Yep, you are not alone on this. I noticed the same kind of problem, where the confirmation email going back to the users has had the formatting pretty seriously corrupted. It looks like it goes beyond missing closing tags in my case too. I have some tables in the email HTML that are ending up laid out so differently that I struggle to even see how the code is being mapped. The basic content is all there, but the table structure is totally different.
This was all working normally until recently, so it would seem there’s been a bug introduced.
