Heavy Forwarders stopped receiving some logs

Hi, I have a new HF once accepted logs for about a week, then stopped receiving on almost all logs at a same time. I compared this HF with the old working one and I don't see rotated logs created on the new HF. For instance, in log1 directory, I see log1.log and several other copies like log1.log-date1.gz and log1.log-date2.gz and so on, but on the new HF I only see log1.log. I think not creating rotated logs on the HF could be the issue, but not sure and how to have these rotated logs created. Anyone can help, I appreciate it. Thanks,