takes many minutes for my pics to populate on gallery

[AC Question]

S5 w Sandisk ultra 32g SD card. My recent photos appear instantly, but last month's and into years ago pics will maybe appear if I wait long enough. But when they do appear and I scroll either way they will disappear again. There's just gray blank spaces. Sometimes only half a pic will appear. There's maybe 1000 pics and everything is on the SD.

 

[B. Diddy]

Welcome to Android Central! The SD card could be corrupt, defective, or counterfeit. Install SD Insight to see if the card is genuine or counterfeit. Counterfeit cards are programmed to report more storage than they actually have, and if you try saving more than the card can actually hold, then files can start getting corrupt.

If it's a valid card, then go to Settings>Storage, Unmount the card, remove it, and insert it into your computer. Can the computer read these files? Backup as much as you can right now, then run chkdsk to look for bad sectors: http://forums.androidcentral.com/am...guide-using-chkdsk-fix-corrupted-sd-card.html.