Is your LANDesk Scheduler Service running? I've seen it where the service stops for one reason or another, and then scheduled events won't run. If it is running, do your global.scheduler logs show any errors?
In addition, check your scheduler service account, what is it set to?
Also please include product version, service pack installed and any component patches that you may have.
You may want to delete the currently scheduled tasks and then re-create them.
This will generate the .XML that the replicator refers to and it will put back in the task on the client.
To see the current tasks scheduled to run on the replicator you can run this command: C:\Program Files (x86)\LANDESK\LDclient\localsch /tasks > C:\tasks.txt
Also you can try running "Vulscan /changesettings /replicationbehavior=default" to see if it refreshes the schedule properly.
Also, ensure that the replicator has the agent installed on it. I know that should be obvious, but we have had customers set up a replicator that does not have the agent on it.
It may be worth reinstalling the agent on a replicator to see if it changes.
The scheduler service was the key to the solution.
My mistake was making my core server the replicator - I missed the part about needing a managed device for the role. Since the core is not managed it doesn't run the scheduler service, thus no repeating tasks. I set up a managed device as the replicator and it is working like a charm.
Live and learn. Thank you for your help.