Thanks @chris.
You are right, the error is not related to the changes in the component. I have found that the reason was I changed the SolveAdjacencies Boundary Conditions from default “SURFACE” to “AIRWALL”.
Following this I have another question.
I split my model into 2 zones with an air-wall in between, because I intend to have two different lighting schedules that are created based on daylight results. I ran the energy simulation having a) just 1 zone; b) 2 zones separated with air-walls, using a default lighting schedule for medium office in order to compare the results and see if they are equal. It occurs that they are not exactly equal:
… … … … Cooling… Heating… /(kWh/year)
2 zones … 47.5… … 313.7
1 zone… … 41.6… … 241
In addition to higher energy intensity, in the case of a 2-zone model, the storage event in the energy balance chart is rather high, as opposed to almost negligible in the case of just 1 zone.
Energy Chart for 2 zones with an air-wall:
I would prefer to use the 2-zone model, but from the chart it looks like there might something wrong with it.
My question is:
Why is there a difference in energy results between the two modelling methods?
I attached my GH file - clean and tidy this time so I hope it’s easy to navigate 
Sorry about the last file, such a mess I know 
2_Daylight_Energy.gh (351.1 KB)