S10 - issues with photos saved to Micro SD card

[Android Central Question]

Bought a new Galaxy S10 a couple weeks ago, and have found issues with photos saved to the Micro SD card. About 1 in 6-8 pictures are not viewable after / corrupt files.

This is the Galaxy S 10 and using a Samsung EVO or a SanDisk Ultra 256gb SD cards...
- if I take 50 pictures with the phone and have saved to SD card, random pictures are lost, showing a grey thumbnail with ! in the middle.
- if I take 50 pictures and save to internal memory, no issues.
- if I copy via USB or Wifi, 50 pictures form my S7 to the SD card, same issue.

I format the SD card in the phone, try again, same issue.
I have did a soft and a hard, factory reset, no help.
Reset cameras settings, used default settings, except to store on SD, no help.
Even gone to Samsung Service Center, where they wiped Android and did a hard reload of the OS and apps, booted and tried without loading other stuff on phone, same issue.

When I try a 16gb SanDisk card, not seeing the issue.
Currently testing with a 128gb SanDisk card, not yet seen issue.

Wondering if anyone else has seen this issue ?
Wondering if the S10 does not like 256gb SD cards?

Frolin

 

[Frolin]

Extra Note: I also formatted the SD card on a Win10 PC, copied photos to it, put card in S10, same issue.

 

[Rukbat]

If it can handle 128GB, it can handle up to 2TB. Maybe you have a flaky 256GB card.

 

[B. Diddy]

I agree with Rukbat -- the card is probably bad. It could be corrupt, or possibly counterfeit (which is pretty common these days). Where did you buy it from?