Roamio keeps canceling in middle of recording

Hi all, first post. Did a search, but didn't find what I was looking for.

I've been struggling with my Roamio for the past month or two when recording. I have a OnePass for a program (F1 Racing to exact), set to ignore repeats and only record new. Lately, without fail, the Roamio has stopped recording mid-program, sometimes after just a couple of minutes, sometimes after over an hour (usually, the recording time should be around 3 hours). When I go to the History list, it will inevitably list that the recording was stopped because it was duplicate, but that is simply not the case. Even double-checking the original air-date and time confirms that there isn't an error in the listing data (listing as a rerun, when it's actually new, for example).

I have now set the OnePass to record both new and reruns as a workaround, but since I record around 9 hours of coverage each race weekend (with planned overage for a live event), and the coverage is usually rerun at least once a weekend, I'd rather not have to keep up with erasing 15-20 hours of extra recordings each weekend.

I really can't figure out why the Roamio is acting this way with this program. Any ideas?

Thanks!