What error message are you getting?
Can you please attach a screenshot?
Sorry for the delay, I didn't get a notification that you replied until now.
How big are these jpeg images? Not in terms of filesize, but their actual image resolution?
Large images require more memory to process. Are these images particularly large?
Is there anything else unusual about them? Are they black and white?
If they are very large images, try resizing them and then try uploading again....
Ok, let me see if another expert has any further ideas on this...
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I'm sorry about the issue, can you change the extension of your image to .png and try again.
If the the problem still occurs try to Deactivate all plugins and upload again.
let me know the results please
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