So since the Installation of One UI6.0 Beta my contactless payment is not working. I have a Samsung Galaxy S23 Ultra and when I try to use Google wallet it tells me device doesn't meet security requirements. What's the problem/issue?
You should uninstall the beta if mobile payments are essential to you. But, looks like the official One UI release isn't too far away, so it's a temporary problem
The are a lot of posts already on the beta forum about Google Pay and it is also noted on the beta sign up page, Google Pay does not work in the Beta Program.