I need help, started using this programme [closed]

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I am Master Mechanical Engineering student that has a task on doing Energy simulation of a luxurious villa, started trough using openstudio plugin in sketchup, made 3 story building, every room i represented with one space, when I did Intersect and entered Render by Boundary condition I saw my floors/ceilings being red coloured and grey(some of them), afterwards checking with chatgpt i proceeded to do Matching in sections(I did not do this once, I saved my document earlier so every time something goes wrong I start from the begining, so I tried couple times different suff). After I do the Matching surfaces are not what they should look like, can somebody help, also provide some usefull tips or literature for openstudio or energy plus