The initial default agent state in MA 4.x is not to show log, this is until it pulls down the MA policy you have set to allow this from the epo server.
you can either:
wake up the agent from an epo place holder
run cmdagent.exe remotley on the client PC with /p /e /c switches using something like psexec
wait for it to check in according to MA default timings
Has the applied agent policy changed at all ?
For example: under Logging, the tickbox for 'Enable Remote Access to log' ?
hrmmmm not sure how I missed that check box lol
No worries, glad it was an easy catch