Are you using the latest blessed model resolver to get the pushed model (saved_model)?
  # Get the latest blessed model for model validation.
  model_resolver = tfx.dsl.Resolver(
      strategy_class=tfx.dsl.experimental.LatestBlessedModelStrategy,
      model=tfx.dsl.Channel(type=tfx.types.standard_artifacts.Model),
      model_blessing=tfx.dsl.Channel(
          type=tfx.types.standard_artifacts.ModelBlessing)).with_id(
              'latest_blessed_model_resolver')


  
      

      TensorFlow
  

  
    

tfx.v1.dsl.Resolver  |  TFX  |  TensorFlow 1

  Definition for TFX Resolver.


  

  
    
    
  

  


  
      

      TensorFlow
  

  
    

tfx.v1.dsl.experimental.LatestBlessedModelStrategy  |  TFX... 1

  LatestBlessedModelStrategy resolves the latest blessed Model artifact.