Hi @aryan,
If I understand correctly, you are running custom code (modified accumulators.py). I suspect that one of your modifications is causing a memory leak. You should try seeing if the unmodified accumulators.py works correctly for you.
The warnings for pkt_index skip indicate that your host computer is not keeping up with sample streaming. This usually introduces only a very small error due to missing samples. On Windows, this is often caused by update checks, antivirus scans, and backups which can cause the entire Windows OS to become unresponsive. You can avoid this problem almost entirely by using on-instrument statistics as I mentioned in (4).