This incident has been resolved.

We are no longer seeing issues related to saving Approvals information. Will continue monitoring until Atlassian also reports issue fixed on https://atlassian.statuspage.io/

We are tracking an issue that appears to be preventing the approval status being saved for some clients.

We believe that is is related to this currently active Atlassian issue with attachments: https://atlassian.statuspage.io/incidents/w3m73fz0nftf