Ultra USB3.0 16GB problem

Simple .JPG or .jpg or any other file I load on it.

Preview is the apple I-mac picture viewer.

this is a Sandisk Ultra USB 3.0 SDCZ48-016G

I also have tried to load from my HP computer.

Everything works on my other thumb drives, just not this one…

I went back to the utilities and verified… said it needed repaired and click repair. Did that, for the fourth run through of this process.

hit verify after the repair to check it and it says it needs repaired…