FormWizard was recently installed on Wikidata and whilst it does work in userspace it does not work in Wikidata: space, all that happens is a stalled progress bar comes up.
According to this .js file for the gadget, FormWizard is permitted to operate in the Wikidata: namespace
The config file for the non working form is at:
https://www.wikidata.org/wiki/Wikidata:FormWizard/Config/Data_import/en
A practice config file in userspace which does work is at:
https://www.wikidata.org/wiki/Wikidata:FormWizard/Config/Data_import2/en
@I_JethroBT can provide more information
Thanks
(assigning to Lydia as she kindly offered to take a look)