Issue Adding Facebook to BlinkFeed topic

I found it weird that the phone shipped without Facebook installed. But after downloading and installing it, I was prompted to authorize HTC Sense. I did that, but I still cannot add it to BlinkFeed. If I check the box, it holds for a few seconds before unchecking itself.

Anyone else have the issue? I am running the semi-nightly betas from the Play Store.

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Sent from the all new HTC One M8