OK, I'm a bit miffed. I downloaded some ringtones from Zedge. Using the stock File Manager I can see them on my Maxx HD's internal storage. If I tap on the filename to play the ringtone, Amazon Cloudplayer pops up and shows all the music files on my SD card. No Zedge ringtones can be found. If I back out of the file manager and try accessing it again, for the purpose of finding ANY file on EITHER my SD card or the internal storage I get sent to Amazon Cloudplayer. I then have to use the back button to get back to the file manager icon in the App drawer. Same thing happens if I try to play audio files on my SD card. Amazon Cloud Player pops up.
If I connect my phone to my PC and navigate to the Zedge ringtones on internal storage and click on them they play as per usual. If I use my PC to play audio files on the SD card they play as usual.
Why does my phone default to Amazon Cloud Player when I tap on an audio file in File Manager? Why the heck doesn't my phone simply play the freakin' audio file? Annoyances 'R Us.