Mat Foundation with opening

[MohammadZaman]

Hello

I modeled a concrete structure with mat foundation and some openings on it. When I calculated required reinforcement every thing was OK. But when I want to go to the provided tab , strange  graphical results are   displayed.

Could you please tell me what's wrong in my model?

Thanks in advance.

I attached a picture and model file.

[Artur.Kosakowski · Accepted solution]

Try to download and install the latest version of the graphic card driver and reduce the hardware acceleration as shown on the attached picture.

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