Just an FYI, since the solution might not be until EOD today. If you need to do development work on a Power BI report that uses Power BI Dataflows, you can switch the connector back to the old dataflow connector. The steps are fairly similar and only need minor tweaking.
Old Connector Query Steps:
let
Source = PowerBI.Dataflows(null),
#"b17......" = Source{[workspaceId="b17......"]}[Data],
#"370......" = #"b17......"{[dataflowId="370......"]}[Data],
EntityName = #"370......"{[entity="EntityName"]}[Data]
in
EntityName
New Connector
let
Source = PowerPlatform.Dataflows(null),
Workspaces = Source{[Id="Workspaces"]}[Data],
#"b17......" = Workspaces{[workspaceId="b17......"]}[Data],
#"370......" = #"b17......"{[dataflowId="370......"]}[Data],
EntityName_ = #"370......"{[entity="EntityName",version=""]}[Data]
in
EntityName_
FYI. This would work even better if Power Query used generic identifies for the steps in this process instead of assigning the GUid as the step name. I do this manually to make code reusable.
So for the New Connector it would read:
let
Source = PowerPlatform.Dataflows(null),
Workspaces = Source{[Id="Workspaces"]}[Data],
Workspace = Workspaces{[workspaceId="b17..."]}[Data],
Dataflow= Workspace{[dataflowId="370..."]}[Data],
Entity = Dataflow{[entity="EntityName",version=""]}[Data]
in
Entity