Hello Glenn Marshall,
I am really sorry for the delay of this reply as it is a weekend for us here.
I have tried to upload you attached the image file from my local site, the images uploaded successfully without error from my media manager,
see my screenshot :
http://screencast.com/t/FKpuDm5A (uploading) ||
http://screencast.com/t/iPMiiKQdEu (uploaded complete) ||
http://screencast.com/t/5MF8BNsG5 (Thumbnail) ||
http://screencast.com/t/tsCcgoejs (Original)
and my local php information memory_limit -> 256MB (
http://screencast.com/t/8JgLTKQb2EQq ) & max_execution_time -> 120 (
http://screencast.com/t/JiibsFkZR )
So i'm suspected that is it when upload some of the images that moment reached the limit of your memory, if is it possible request with your webhosting provider to increase that memory_limit and max_execution_time to higher after you upgrade the service. After your webhosting provider help you increased, the images still can't upload, so you can prove it my suspected is incorrect.
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Hello Anirudh Kumar,
I am really sorry for the delay of this reply as it is a weekend for us here.
Thanks for sharing, may i know if you enable "Resize original image" to YES, then your client file already uploaded successfully?