SAEF file upload issue

Hello All.

I am running a site on EE 1.6.8. I have recently updated to this.

I have various SAEF forms (also integrated with Solspace Form Helper plugin).

I am using ajaxupload as a image file upload method in my SAEF forms whereby the user chooses their file to upload and the actual ‘upload process’ should occur on selection of the file and NOT onSubmit. This was working successfully on EE 1.6.7.

I am now experiencing problems where the in form ‘upload’ process is being completely erratic.

ie. sometimes the files upload as they should (immediately and automatically), and other times it just shows the file name within the upload browse field, and, it does not upload to the server when the Submit button is clicked.

Basically, I have been rooting around within my ajax, javascript and jquery to ‘trial and error’ where there maybe a clash. But have had no luck. The problem persists when I rule out all possible javascript clashes.

Can anyone possibly point me to a solution or place to look for such erratic file upload error causing?

Has anyone else had a similar problem when they updated to EE 1.6.8 ?

Thank you.