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That may be the issue. It’s possible your card may not support it if it’s an integrated graphics card. Possibly try updating drivers. I’m not certain of another option for the demo. For the full version I may be able to do something to address this kind of problem.

I don't know, I hope that I have tried many games with unity and none failed me. the ones that were some of Unreal Engine 4 of the error that continues to exist since 2015