Can’t add Header Banner Image

Hello,

Since the last update, I can’t add header image anymore.
When i check the box “Use a banner header image”, nothing happens.. I don’t even see the images appearing next to it or the button that let me load one.

I’m using “InstantWP” to test the theme before deploying it (as local).

Nicolas : Following your post on hueman website, I tried disabling all the plugins, but I have the same result.

Here is the information concerning my Hueman config :

# SITE_URL:               http://127.0.0.1:4001/wordpress
# HOME_URL:               http://127.0.0.1:4001/wordpress
# IS MULTISITE :          No

# THEME | VERSION :       Hueman | v3.3.1
# WP VERSION :            4.7
# PERMALINK STRUCTURE :   /%postname%/
# 4 ACTIVE PLUGINS :
                          - Crayon Syntax Highlighter (version 2.8.4)
                          - Hueman Addons (version 2.0.3)
                          - WordPress Importer (version 0.6.3)
                          - WP Native Dashboard (version 1.3.12)

# PHP Version:            5.3.2
# MySQL Version:          
# Web Server Info:        Apache/2.2.15 (Win32) PHP/5.3.2

# WordPress Memory Limit: 40MB
# PHP Memory Limit:       256M
# PHP Upload Max Size:    2M
# PHP Post Max Size:      8M
# PHP Upload Max Filesize:2M
# PHP Time Limit:         1000
# PHP Max Input Vars:     
# PHP Arg Separator:      &
# PHP Allow URL File Open:Yes
# WP_DEBUG:               Disabled

# Show On Front:          posts
# Page On Front:          (#0)
# Page For Posts:         (#0)

Do you have any idea ?

Thx !