Exception while generating vector

[dabedin]

After an error-free deployment to ACA, following the suggested post deployment checks I found no traces in Application Insights.
In ca-chatservicew-* Container App logs I found many Ks of errors like the following one:

fail: BuildYourOwnCopilot.SemanticKernel.Plugins.Memory.VectorMemoryStore[0]
      Exception while generating vector for [2574856F-DC91-4D8E-B18D-2253AF2064D9 of type SalesOrder]: This model does not support specifying dimensions.
      Status: 400 (model_error)
      Content:
      {
        "error": {
          "message": "This model does not support specifying dimensions.",
          "type": "invalid_request_error",
          "param": null,
          "code": null
        }
      }

Examining the CosmosDb there is no sales-order container and *-vector-store containers have no records.

Any hint on what is wrong?