After updating vCenter today，Status will pop up on the Update Manager page 404 錯誤，Many options are also abnormal：
after crawling the web，The result is only caused by the browser cache，So press CTRL + F5 Or clear the cache to solve the problem。
【參考連結】
- vLCM error 404 after upgrading to vCenter 7.0.1d | Virtual Allan
- vCenter 7 Lifecycle Manager Status 404 and Errors … – VMware Technology Network VMTN
