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In general, you should always upgrade your DualShield to the latest update as soon as possible. If you are running DualShield 6.4 and cannot upgrade to the latest update 6.4.20.1212 immediately, then you should add "-Dlog4j2.formatMsgNoLookups=true" into the JAVA settings and restart the DualShield service after the change.
Click here for instructions on how to change JAVA settings in the DualShield platform.
Actions taken by the DualShield team
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