Updated,
Hi,
It would be best practice to have SEPM and SEP clients on same version.
Upgrade your SEPM to RU7 & then export the packages.
This happened because of the option is selected : Download Symantec Endpoint Protection product updates using a LiveUpdate server
This option downloads and installs client software updates automatically when users click LiveUpdate or when a scheduled LiveUpdate session runs. When disabled, prevents downloading and installing client software updates, even if another Symantec product runs LiveUpdate on the client computer.
If the LiveUpdate Settings policy specifies that clients download updates from a Symantec Endpoint Protection Manager or Group Update Provider, the updates are in the form of microdefs. If the LiveUpdate Settings policy specifies that clients download updates from a LiveUpdate server, the updates are in the form of MSP (patch) files.
This setting lets you control client software versions. When this setting is disabled, client software can only be manually updated. When the management server downloads and processes patches, it creates a microdef, which automatically appears as a new package. The new package appears in the Client Install Packages pane. You can then select the package, and use the Upgrade Groups with Package feature for your Windows clients.
As of now, please go ahead and upgrade SEPM to RU7.