I was there! It was clear that nobody else knew it was her first night back after a while haha. It wasn't the most excitable audience ever, but Hailey's voice sounded insanely rich and healthy. She gave a wonderful performance, as usual.
The part where Ti Moune can barely walk in her heels during the ball has been decreased greatly. Her shoes have been changed to a lower heel (although still red!) As she's walking in, her legs wobbled a little, but I don't think anyone would've noticed the bit if you haven't seen it before. She did one turn before taking off the shoes, which was completely fine. I found myself worried about her foot when she had those heels on, so I was relieved when she took them off.
Another small change was that her first entrance as Ti Moune had her jumping up on the sandbags surrounding the pool. Normally, she runs through the water and jumps onto the boat, but the boat was moved slightly to the side and she just hopped up on the border of the pool (much shorter jump).
She had a black bandage on her foot, but overall, she didn't miss a single beat. What a true talent!