When I attempt to select all Entities in a Dynamics 365 environment I recieve an error that says "Could not find entity. If I select the entities in smaller groups the error does not seem to occur.
Please try performing the following steps:
- open your Dynamics CRM connection and click the 'clear' link for "Metadata Cache" parameter;
- create new Replication package and select all the tables.
Tell us if this helps.