User rwinikates pointed out in #1945624: Theme developer module corrupts Juicebox XML structure (Images are not loaded on to the gallery) that having the module "Form API Validation" active leads to broken Juicebox displays. This is due to a known bug in "Form API Validation" that applies specifically to 7.x-2.0 of that module (and is not related to the Juicebox module):
#1863146: There is whitespace at the beginning of the .module file
If you are using "Form API Validation" please update to the dev version of that module or a version above 7.x-2.0 (if available). I'll leave this open for a bit so anyone using Form API Validation can see what's up.
Comments
Comment #1
rjacobs CreditAttribution: rjacobs commentedVersion 7.x-2.1 of the Form API Validation module is out now, so I'm hoping this notice is no longer needed.
Comment #1.0
rjacobs CreditAttribution: rjacobs commentedExpanded notes