Can you try a heat gun? My kitchen cabinets were similar. Even sandpaper didn't make the slightest bit of a difference. Heat gun ended up being the only option.
This is what I was thinking. I'm pretty sure we'll have to use one on our cabinets too.
A belated happy birthday IM!
I hope that your day was wonderful, as well as the year to come.
Thank you! It was a great weekend.