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):

https://ee.wsb-labs.com/edit/w0qRxzFa?instance_id=165fc62d-0767-4255-82c0-c41e8cbf72b8&returnUrl=false

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

https://ee.wsb-labs.com/media/get/https/kc.wsb-labs.com/media/medium?media_file=vkrishna%2Fattachments%2F00e1126c1fe24b51bb0d932ae10f0607%2F165fc62d-0767-4255-82c0-c41e8cbf72b8%2Fsignature-12_49_55.png

Enketo is giving me this error:

DNS lookup 10.0.0.181(family:4, host:kc.wsb-labs.com) is not allowed. Because, It is private IP address.Error Code: 500

has anyone seen this error before?