If you cannot select servicetest, check whether the service is normal. If the service is abnormal, fix the issues and try again.
It takes several seconds for the traffic policy to take effect. You can view the running of the grayscale version on the View Status page.
Check whether the number of resources in v2 matches that in v1. After confirming that v2 is able to serve all the traffic of v1, switch all the traffic from v1 to v2.
After v2 takes over all the traffic from v1, bring v1 offline to release its resources.
The v1 version is brought offline and the test grayscale task is deleted.