Complete newbie here. I decided to transfer my music files from HHD to SSD external hard drive. Old HHD works fine, but I can't get SSD to connect to my Pi 3+ that I'm using as a steamer/server. I can see files when SSD is connected to lap top, but can't see them when it's connected to RPi. I'm using LMS. I've gone to settings and done rescans at Media folders and at Media Library. Plug HHD back in and it works fine! What am I doing wrong?