Using Rhino 7.3.6 and Speckle v2.13.0, both have been updated.
I do have the connector installed for revit and autocad, I’ve done a test to send info from Revit and works fine.
2.13 sounds like the version of Speckle Manager unless you are VERY out of date.
I’m screenshotting my Manager, which shows I’m in a dangerous state as the connectors are at different versions - this happens as we are testing new releases. For an ideal experience, get each of the Revit, AutoCAD and Rhino connectors at 2.18 if they aren’t already