*** Bug 1944103 has been marked as a duplicate of this bug. ***
Verified the bug, cross button is clickable and working now. Verification done in OCP version 4.7.0-0.nightly-2021-05-05-092347 and OCS version ocs-operator.v4.7.0-383.ci.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (OpenShift Container Platform 4.7.11 bug fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:1550