Ceiling too bright/weird leaking

hi all, when i build my lights i’m getting my ceilings too much brigther than the rest of the room and gets lit on sides where it shouldnt be lit. Im using stationary spot lights looking at the bottom, so the ceiling should get only indirect lighting (the entire room is a single mesh and i’m using 2048 of lightmap resolution), can anyone help? thanks in advance.

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solved reimporting the mesh