What is your experience with product compatibility?

I purchased the 64GB SanDisk Ultra microSDXC™ UHS-I card for my Galaxy Note 2 (recommended as compatible on the SanDisk website). The card seems to read and write just fine. However, with this card in the phone, the phone status changes to Modified and I can no longer receive OTA software updates. Also, the Samsung Video Hub will no longer allow me to switch my storage to the external card (something I am able to do with a 32GB card from another manufacturer).