Daylight analysis Heatmap showing 0lux value

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Hello, I am conducting a daylight analysis for a design option using Honeybee. I have followed all the steps from the Ladybug YouTube channel and used the Mumbai, India EPW file. Despite trying different timings and locations, with and without the shades, the heatmap still shows 0 lux. Can anyone help me resolve this issue?

Maybe the setting for the windows is not correct.Please check it.

Probably you need to flip the normal direction of the surface.
-A.

Thankyou @minggangyin ! My windows were not applied correctly it’s working now.

Thank you for taking the time to answer my doubt, it’s solved now.