I have followed your instructions and this is the out come:
If i upload all of the following in one and submit
User image
Gallery Image 1, Gallery Image 2, Gallery Image 3, Gallery Image 4.
All images upload.
If i then change User image and update the user image updates and
Gallery Image 1, Gallery Image 2, Gallery Image 3, Gallery Image 4.
are removed
Again i have attached my page as an attachment.
Many thanks in advance
Jonathon