Spot Light Unwanted Shadow

Hey! I’m new to this software, I was doing some tutorials for my first steps through, but I’m having a lot of trouble with the lightning. Always, whenever I add a Spot Light to the scene, a shadow appears next to the light, like an invisible shape was there. I’m posting some screenshots of how it looks like…

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I have looked for info on the net but nothing comes out, could it be that I’m on a Macbook? I hope you can help me out, this is getting a little bit frustrating. Thanks for your time!

It says in the viewport up on the top left that the “lighting needs to be rebuilt”. If you haven’t done that, it’s a simple fix:

Go into the Build tab next to the play tab (says “Disenar” in your screenshot) by clicking on the arrow, and in the dropdown you should see “Build Lighting Only”. Click on that and wait for a bit. It may show a prompt that the lighting is built and a button saying “Apply Now”, in which case, click the button, but more likely all you have to do is wait.

After that, the lighting should be fine. Introducing new lights to a level usually requires you to do this.
Hope that helps!

Were you sent from the heavens? Thank you some much !