1. Click Edit Config File and backup your config.
2. Goto Management Actions > Upgrade / Downgrade Options.
3. Tick Develop Branch
4. Return to Services > View Details. Click Update
5. Click Update
When done, shutdown your server.
Click Edit Server Config and restore your old config you backed up in step 1.
Remove the line....
<property name="EnemySenseMemory"value="60" />
Edit the Line......
value="60"
to
value="true"
<property name="EnemySpawnMode"value="true" />
Save and Restart.