MRT results_info.json is missing only for Scenario01, while UTCI runs successfully

ladybug-tools
1

Hi everyone,

I am having an issue with extracting hourly MRT results from a UTCI Comfort Map simulation in Grasshopper.

I have two models:

  • A baseline model

  • A Scenario01 model, in which I have only changed the material properties

The UTCI simulation runs successfully for both models.

For the baseline model, I can extract and convert the hourly MRT results without any issue. However, when I use the same workflow for Scenario01, I receive the following error:

Solution exception: Could not find file 'C:\Users\User\simulation\unnamed\utci_comfort_map\initial_results\conditions\final\mrt\results_info.json'.

Therefore, the issue is not that the UTCI simulation fails. The UTCI results are generated successfully for both the baseline and scenario models. The problem occurs only when I try to read or convert the MRT results for Scenario01.

It appears that the following file is either not generated or cannot be found for the scenario model:

mrt\results_info.json

The same MRT extraction/conversion workflow works correctly for the baseline model.

I am currently using Ladybug Tools version 1.10. I previously used version 1.8 on another computer, where the MRT results could be exported directly to Excel without this issue.

I have attached both Grasshopper files so that the baseline and scenario workflows can be compared.

Does anyone know why the MRT results_info.json file may be missing only for the scenario model, even though the UTCI simulation completes successfully?

Could this be related to:

  • The changed material properties

  • Cached or overwritten simulation results

  • The simulation folder structure

  • A difference between Ladybug Tools versions 1.8 and 1.10

  • A missing MRT result output in the scenario simulation

Thank you for your help.

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dp1.gh (1014.7 KB)

dp2.gh (1.2 MB)