Invalid URI Error on Source Import

I am importing about 70 Sources in one file via the /sp-config endpoint on the v2025 API. I am getting this error:

{

“jobId”: “71eca223-18f2-40f4-8768-2f54b2d87b6c”,

“status”: “FAILED”,

“type”: “IMPORT”,

“message”: “com.sailpoint.mantisclient.exception.baserestclient.BaseRestClientException: Invalid URI”,

“created”: “2025-09-17T15:10:56.842Z”,

“modified”: “2025-09-17T15:11:16.105Z”

}

Does anyone know how to troubleshoot this error? I have looked at the URL values in the Sources, but they all look fine. Not sure where to go with this one…