Missing Slider Button to listen to past shows

I have an issue where I am not able to listen to past programs on my SiriusXM online Internet Radio. For example, on Channel 82 - Radio Classics - there was the option (until today) to "slide the button" back for up to 5 hours to listen to previous shows. It's now completely gone...the "slider button" that is. It appears that the control is still there, but the button itself is gone.

Just as an FYI...I am not able to find this button on any other channel, but I don't know how many other channels one was able to use it.

Thank you for any help!

Buttons sometimes get disabled for me too. Its usually just a glitch that restarting the app solves.