SEM 6.7.1 is now available on your Customer Portal and includes a fix for the agent memory issue. Apologies for any inconvenience caused as a result of the issue, I understand it was frustrating. Once you upgrade the SEM appliance to 6.7.1, the update will push to your agents (provided auto-update is enabled) and no further action is required in order to resolve the issue.
Thanks for bearing with us!