Here is the issue. My old SD card became corrupted. I tried reformatting a ton of different ways using both the phone and my PC, and nothing worked. The files were still there. I backed up all files, primarily music and photos, and bought a new SD card (same brand and capacity). I loaded all the old files to the new SD card. After inserting the SD card to my Galaxy S8, I can access the files via file explorer, however my Samsung Music isn't showing the songs, nor my old playlists, and the photos are not appearing back into my photo albums. I'm not sure what to do, I've been browsing Google for quite some time and I can't find any fixes for this exact issue. Please help.