Greetings Residents! Please note that with the release of the Second Life Viewer Maintenance Preferences, Positions and Paste fixes (build 220.127.116.116863) we are making the decision to sort the alpha blending of rigged mesh attachments by the priority assigned to each attachment point. For example, the Chest attachment ID is 1 and is treated with highest priority.
We know this change will require that some alpha blended rigged mesh content will need to be moved to new attachment points. Residents should be able to do this for themselves in many cases, but content creators may need to adjust their product attachment points to account for the new changes.
One of our Residents has written their own blog post explaining this in much greater detail and can be found at: https://beqsother.blogspot.com/2022/11/alpha-blend-issues-get-them-sorted.html
As always, if you believe you have found a bug, please file a Bug report at https://jira.secondlife.com