Weird anomalies with deferred rendering

Greetings! I need help with deferred rendering. I changed from forward shading to deferred because with forward shading it appears any king of AO and some effects wont work, and that’s a game changer for me. But when using deferred, its quite nice, but it has some issues that I do not know how to resolve at all. I have some pictures showing off the issue so you can get an idea. I’m not sure why this weird shadows are appearing, but i have any postprocessing disabled. And the issue persists. Hoping someone could help me.