Closed Captions out of sync on ABC shows

For the past few weeks, I have noticed that the closed captions for ABC network shows are about 15 seconds to a minute behind the actual show. This makes them unusable. I see this, when looking at shows that were recorded for XFINITY stream. I also have seen at least one on-demand show for ABC that was similarly out of sync. This makes me think that something is wrong with the network feed to XFINITY. For what it’s worth I live in Sacramento. Has anybody else seen this?