Default [CM] Google Play Movies & TV Only Downloads in SD

I recently installed CyanogenMod 11 on two of my devices, a Nexus 10 (running CM11 M5) and a Galaxy Tab Pro 8.4 (running the latest build by crpalmer). Since I did that, I've noticed something weird that never showed up on either of those two devices before. When I download movies or TV shows from Google Play Movies & TV, they always download in standard definition. The setting is set to download in HD, but in practice this is ignored.

This isn't happening on my Nexus 7 that runs stock. Can anybody give a reason for this and a possible solution?