Schedule/manual refresh not possible from Azure Blob storage?

Thanks for the reply v-ljerr-msft. I had another look and it doesn't look like I have any other external sources setup.. It's the blob storage + a couple of tables which are hand created within Power BI. This is a screenshot of relevant section of the the dependencies diagram:

I also double checked the script for Load Data, and it seems pretty innocuous:

let
    Source = AzureStorage.Blobs(Text.Combine({"https://", StorageAccount, ".blob.core.windows.net/", StorageContainer})),
    #"Combined Binaries" = Binary.Combine(Source[Content]),
    #"Imported Text" = Table.FromColumns({Lines.FromBinary(#"Combined Binaries",null,null,1252)}),
    #"Parsed JSON" = Table.TransformColumns(#"Imported Text",{},Json.Document),
    #"Expanded Column1" = Table.ExpandRecordColumn(#"Parsed JSON", "Column1", {"event", "internal", "context"}, {"event", "internal", "context"})
in
    #"Expanded Column1"

Everything else within the model is either a function, or tables generated from "Load Data".

In the AzureStorage.Blobs line I use a couple of parameters defined in the pbix project - I don't suppose this would cause any issues with loading it in the service would it?

I also checked both hand-added tables and they do indeed only use a Table.FromRows and they both use:

Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("binaryText....", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Database = _t, DB_Pictures_database = _t]),

As their source.. Again, I don't imagine this would cause any issues to the online service to load?

Any ideas?