load_results_after_load_mh results file not found

I have an estimated model with mh_replic=0, and both load_mh_file and load_results_after_load_mh are switched on, but I get the following warning:

dynare_estimation_init:: You specified the load_results_after_load_mh, but no _results.mat-file

dynare_estimation_init:: was found. Results will be recomputed.

If I navigate to modfilename/Output/modfilename_results.mat and copy it to the main folder then it works. Is this intended behaviour or is Dynare not looking in the right path? Using v5.3.

Thanks, William