Experiencing random flashing lights when baking

I have been testing lightmapping for a while, everything worked just fine, even when the warn about ‘UV Overlapping’ appeared. I made a 3D object with probuilder and all that stuff. Now I bake the lightmap (simulating a kind of neon effect) and I get some tiny white pixels and, with the Bloom Post Processing Effect it shines incredibly bright (I don’t plan on removing Bloom from the game). Does anyone know how to solve this “white pixel” issue when lightmapping?

PS: It seems it only occurs on the edges of the polygons

imagen