Only 95 minutes of PBS's National Parks, Ep. 2 is posted

The last 40-ish minutes of Ken Burns' The National Parks: America's Best Idea, episode 2, "The last Refuge: 1890 - 1915" is missing from On Demand.  This is the third PBS program that is missing its "tail-end" that I've come across recently.  The others are:

Prince Albert: A Victorian Hero Revealed, which Xfinity failed to fix before it expired.

https://forums.xfinity.com/t5/On-Demand/Only-27-minutes-of-PBS-s-quot-Prince-Albert-quot-has-been/td-p/3345238

Recorder: The Marion Stokes Project, which will expire tomorrow.

https://forums.xfinity.com/t5/On-Demand/Only-32-minutes-of-PBS-s-Recorder-The-Marion-Stokes-Project/td-p/3352541

It appears the Xfinity Stream programs are/were full length.  Please fix the On Demand offerings!