Getting a kind of "color filter" over everything

Hi I’m completely new to UE and I have never used it before so now I’m trying to take a look at it to learn some things but when I open it I get this weird light on top and a red color all over the scene (this is the first time I open it and I haven’t modified anything):

The light thing on top seems to disappear when I scroll outside of the space but I still think is a problem because I can’t get inside of it without it appearing again and the red is still there.

I’m using UE 4.26 in a M1 MacBook Air.

Check if you got any Postprocess volume in your scene and remove it, just to eliminaste posibilities.
Of course check the materials on the wall and floors to see if they have any red component, and check the mainlight as well.

Anyway, if this is the default scene, everithing need to look grey. Thats weird.