I tried to go through many posts in this community and still wasn't sure if it is necessary upgrade the WD NAS to My Cloud OS 5?  I don't need remote access and only use the NAS for the sole purpose of streaming movies with Emby (a great product).  Everything is working just fine now with the current state of NAS running My Cloud OS 3.  As I read others have issues with days of indexing when they upgrade their WD NAS to My Cloud OS 5, I am very hesitant of doing the upgrade.  Could anyone share