Can't add more than 1 product to custom order

What gives..?

I am trying to create a custom order this morning, which I have done thousands of time. However, when I add a second product the totals refresh as normal but the product is not added to the list of custom products nor are the totals updated!

Anyone else having similar issues..?

Just went to do the same thing and I’m having the same exact issue. I hope it’s fixed very soon.