Smart Resume not working correctly

For the last week or so on my X1, the Smart Resume feature has started to resume too soon.  That is, when a commercial starts and I hit fast forward, the fast forwarding stops somewhere between 30 seconds and 90 seconds before the program starts playing again.  So I'm forced to watch at least one commercial before the program starts, unless I manually skip or fast-forward through them.

When I look at the blue and yellow bar indicating where the smart resume window is in the programming stream, it actually looks like the whole smart resume window is skewed about 30-90 seconds early.  That is, the yellow part starts before the commercials start, and the yellow part ends before the commercials end.

Anyone else notice this problem?  I haven't actually reported this to Xfinity Support, but I hope someone might be monitoring this and could address this if it is a general problem.