Hi Rajesh,
I tried disabling all cache including server side and did not work. I also tried twenty twenty four theme, I also rolled back my existing theme including the php version to match and nothing has worked so far.
Every time I create a staging theme it never lets me log in, I used a staging plugin and tried my server side staging and either of them will let me log in. The odd thing now is that I can see that every time I try logging into the My Account page with a valid user, my WP Security plugin will show that those users are currently logged in however the page stays on the login screen so now I am trying to see whats going on with the endpoints as I have already checked this and all endpoints go where they are supposed to go from what I see.