Hi MikeJuri,

I have reported this issue to the developer, he said can not reproduced this issue on your page, so I tested it again, and it works fine for me too. Do you still get the same issue on your end?

By the way, you can try set the TempDirectory for the uploader control, we thought it may causes by the permission problem. Set to a folder which your site has the write/read permission.

$uploader->TempDirectory="/temp"; 

Regards,

Ken