I'm bringing up an issue that is currently bugging Windows Server 2022 (and Windows 11) administrators. After installing the cumulative update KB5026370 for Windows Server 2022, it is no longer possible to query "Effective Permissions" in Explorer. Windows Explorer loads the CPU, but nothing happens. Tobias had emailed yesterday afternoon to report the bug. But there are a number of cases and I already had the topic on May 27, 2023 in the blog post Windows: Patchday issues and fixes in May 2023 (Server 2022 effective access query, VPN) including references to further sources.