I have a field x showing the showing the "Upload - File" field. I have this problem on every content type this field is used. The problem started after updating Seblod.
My current version is 3.10.0, my Joomla version is 3.6.3
Here is a screenshot of the frontend of an article where the problem occurs (name of the field is 'Bijlagen'):
Here is a screenshot of the form I use (name of the field is 'Bijlagen'):