I recently added a 16GB storage card to my phone and set it as an extension to the internal memory using the built-in tool in Cyanogenmod 13. But now, the recovery can not find the update files anymore. I can only open the /storage/sdcard folder, but when I try to open /storage/sdcard/0 to access the cmupdater folder, it says that there are no files in there. I can install updates using adb commands though. How can I fix this?