Front end assets uploading, does not appear to be a an image error I have a front end form for entries. All other fields are working fine however my assets keep throwing errors. 

My assets location is set to 'Images/{slug}' in the CP. Server info tells my Imagemagick is installed, on both local and staging environments. 

However, when I submit an entry form with a file chosen for the assets field I get an error
'The file XXX does not appear to be an image.'
The odd thing is that the image does actually get uploaded and it's in the expected assets location, but the entry does not get created.

I should add that I can view it within the file directory, but the asset is not indexed into the Assets CP view.

Any ideas?
The issue lies if you have a Preparse field in that field layout, see details here: https://github.com/aelvan/Preparse-Field-Craft/issues/23