I had similar problem. I have received several notifications from Windows and motherboard’s UEFI that my disk in need to be replaced. SSD Dashboard shows exclamation mark in “Spare Blocks Remaining” but shows “Drive Health: Normal”.
https://i.imgur.com/C6Omj7N.jpg
So… this SSD is good or bad?
If is good why BIOS and windows notify me?
If is bad why San Disk Dashboard “Drive Health: Normal” ?
Should I generate RMA and send it back to San Disk?