Enketo: DNS lookup is not allowed

Hello -

We are encountering an enketo error when loading an already saved form to edit (urls are provided for example - they require authentication which I can’t post on a public forum):


The page above has some media attachments to the submitted form, and the urls are being loaded like:


Enketo is giving me this error:

DNS lookup, host:kc.wsb-labs.com) is not allowed. Because, It is private IP address.Error Code: 500

has anyone seen this error before?