We are currently investigating and working to address this issue.
■If a portrait was linked with multiple gear sets before Patch 6.2, the data for the portrait of the linked gear set will be shared. When that portrait is changed, the data of other gear sets that share the same data will also be changed.
*When addressing this issue, the cause and situations where this issue has already occurred will be resolved together automatically. Until the issue is addressed, deleting the affected gear set and creating a new one can resolve the issue.
We apologise for any inconvenience caused.