I created a subdomain for a staging site. Point this to IP1. I am running two sites on this IP as a plesk server. The staging site URL kept on redirecting to the other site on the server. So i pointed the new subdomain URL to a completely new plesk server. (all of the DNS is on cloudflare). The URL still redirects to the old IP and incorrect website. This happens from multiple computers on different networks. However if I open a private browser the URL resolves correctly, this also works correctly on my mobile phone.
Can anyone advise?