@ Shoeb
No, definitely not the internet speed. The file has already been uploaded prior the doing the actual mapping.
It sounds like a server resource issue or a malformed CSV file. Could you attach the CSV file as a private reply so I can eliminate that as the issue. If it is not the issue, then it could be a fatal JavaScript error being caused by another plugin or the theme. You can check this by doing another import. When you get to the progress bar screen, hit the F12 key and then click the console tab … oh, do this in Chrome. Let me know if you see any errors being reported.
If the CSV file is not the issue and you do not see any errors in the Console, I will likely require a temp admin account so I can replicate the error myself to debug the issue for you.
