Form Submitted message missing on submission Object Object instead

[MangatuIntegrated]

Hi, I have a survey 123 added to an experience via a widget. I works fine, except that when I submit a form, instead of a message  saying ' Form successfully submitted', I get a message saying [object Object]

Any thoughts?

Cheers

Andrew

[ColForbin]

I have the same issue, but only after I changed the thank you screen to include a custom graphic hosted in AGO.  I have not resolved the issue but am waiting for a response from support.