Something went wrong, Dataflow publish failed

I managed to solve this, I was changing the base URL of the Web.Contents which meant the flow didn't know what connector to use everytime it changed.

Fixed by using one Base URL and then using RelativePath and Query properly.

So I changed this

let
    FetchPage = (url) =>
        let
            Source = Json.Document(Web.Contents(url)),
            Data = Source[data],
            NextPage = Source[meta][pagination][next],
            More = Source[meta][pagination][more],
            Result = if More then Data & @FetchPage(NextPage) else Data
        in
            Result,
    StartURL = "https://api.wonde.com/v1.0/schools?page=1",
    AllData = FetchPage(StartURL),

...and so on with some more data changes

into this:

FetchPage = (url) =>
        let
            baseURL = "https://api.wonde.com/v1.0/",
            relativePath = "schools",
            queryList = Uri.Parts(url)[Query],
            response = Web.Contents(baseURL,
            [
                RelativePath = relativePath,
                Query = queryList
            ]),
            Source = Json.Document(response),
            Data = Source[data],
            NextPage = Source[meta][pagination][next],
            More = Source[meta][pagination][more],
            Result = if More then Data & @FetchPage(NextPage) else Data
        in
            Result,
    StartURL = "https://api.wonde.com/v1.0/schools?page=1",
    AllData = FetchPage(StartURL),

which means it always uses the same connector and is using the relative path correctly.