WPMU issue with membership expiration date


I am in the support queue but have to leave my desk. The site has been backed up if you would like to look without me present. Just need to know what you do to resolve the issue.
In the all memberships screen, when we look at an individual member rather than a monthly subscription beginning on 10/21 and ending 11/20 the expiration date appears as 12/20. Same happens with the annual subscriptions. They show as 2019 rather than 2018. See screenshot. This appears to happen with all members.
Thanks