One of the forms I have been building for a client has a look-up to Zoho CRM's Users module and this Zoho Creator form fails to load in edit mode, when some user record is already selected for this field. 

When I make this field empty, by using the Bulk Edit option, the edit form opens up without any issue. I have provided below relevant images..

Error scenario :

Same form loading with the field is empty :

I also have another such Zoho CRM look-up field (referring to Accounts) in another Zoho Creator form within the same application which does not have this issue when using the edit form.

I was assuming this was a temporary glitch, but this has persisted for more than a couple of days.

Kindly let me know if there is some additional configuration change I need to do to have this working or if this is some sort of a known issue/limitation.

Best Regards,

Z.App.Maker