I ran into an odd issue with adoptable memory. Everything worked fine until I tried to reinstall an app that had previously resided on the SD card. I received a -504 error every time I tried to reinstall. I did all the cache cleaning, etc, etc but I could not get the app to reinstall. I ran experiments to repeat this issue. If I moved an app from the SD part of the memory to the internal part and uninstalled it I could reinstall just fine. If I uninstalled an app that was sitting on the SD card I could not reinstall. In the end, I just moved everything off the SD card back to internal and reformatted the SD card back to normal (removable) memory. Has anyone else run into this? I am curious if anyone has seen this problem and then solved it. This was on an S7 edge. Thanks.