# \#github-issue

**URL:** https://community.suews.io/tag/github-issue/1.md

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## [How to implement chunk\_day in new syntax](https://community.suews.io/t/how-to-implement-chunk-day-in-new-syntax/40)

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**Author:** [@biglimp](https://community.suews.io/u/biglimp)\
**Replies:** 10\
**Last updated:** [20 August 2026 09:14 UTC](https://community.suews.io/t/how-to-implement-chunk-day-in-new-syntax/40 "2026-08-20T09:14:11Z")

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How do I implement the old switch chunk\_day using the new type of syntax sim.run()? We use it since we sometime have memory issues in Windows env., or maybe this is not needed anymore?

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## [SUEWS v2026.1.28rc1 crash in UMEP when saving results (TypeError with a dictionary instead of a string)](https://community.suews.io/t/suews-v2026-1-28rc1-crash-in-umep-when-saving-results-typeerror-with-a-dictionary-instead-of-a-string/140)

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**Author:** [@Adhaile](https://community.suews.io/u/Adhaile)\
**Replies:** 7\
**Last updated:** [15 July 2026 08:43 UTC](https://community.suews.io/t/suews-v2026-1-28rc1-crash-in-umep-when-saving-results-typeerror-with-a-dictionary-instead-of-a-string/140 "2026-07-15T08:43:55Z")

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I’m running the “Urban Energy Balance: SUEWS” processing algorithm in UMEP (QGIS plugin), using SUEWS v2026.1.28rc1 with SuPy 2026.4.3rc1, on QGIS 3.40.11-Bratislava, Windows. The simulation itself runs correctly all the…

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## [Question about FAIBldg and wind response at 1 km grid resolution](https://community.suews.io/t/question-about-faibldg-and-wind-response-at-1-km-grid-resolution/131)

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**Author:** [@HXban](https://community.suews.io/u/HXban)\
**Replies:** 3\
**Last updated:** [1 July 2026 07:00 UTC](https://community.suews.io/t/question-about-faibldg-and-wind-response-at-1-km-grid-resolution/131 "2026-07-01T07:00:15Z")

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I have a question regarding the internal calculation of FAIBldg when using SUEWS on 1 km × 1 km grids. I am using SUEWS on 1 km × 1 km grids. When using the default configuration (FAIMethod = 1), I noticed that the int…

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## [Pydantic tests makes model un-user-friendly. No solution offered](https://community.suews.io/t/pydantic-tests-makes-model-un-user-friendly-no-solution-offered/128)

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**Author:** [@biglimp](https://community.suews.io/u/biglimp)\
**Replies:** 6\
**Last updated:** [26 June 2026 14:53 UTC](https://community.suews.io/t/pydantic-tests-makes-model-un-user-friendly-no-solution-offered/128 "2026-06-26T14:53:45Z")

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We have discussed this issue many times but I will bring this up again as this might also happen other users. (Maybe this also should be posted in the UMEP Discussions forum as we might reach a wider audience there). We…

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## [Question on seasonal LAI varibility and use of observed LAI in SUEWS](https://community.suews.io/t/question-on-seasonal-lai-varibility-and-use-of-observed-lai-in-suews/45)

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**Author:** [@Divya](https://community.suews.io/u/Divya)\
**Replies:** 12\
**Last updated:** [20 April 2026 12:03 UTC](https://community.suews.io/t/question-on-seasonal-lai-varibility-and-use-of-observed-lai-in-suews/45 "2026-04-20T12:03:16Z")

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Hello Team, In my simulation, the LAI for grass, evergreen trees and deciduous trees remains constant throughout the year, while MERRA2 shows strong seasonal variability. I have attached the LAI plot and LAI parameter f…