Well, the thing is that after manually arranging my components, and autorouting in PCBNew, my connections do not follow the same logic/order than laid in my schematic! So, if I had thre components A, B, and C; and I needed electrons to go from A to B and finally to C; PCBNew will be indifferent about that, and would just connect A to C jumping B, just because A and C are closer to each other than to B.
To come with a tangible example (I am not allowed to also show you the picture with the PCB layout): After autorouting, I get the “V+” pin of the “IRM-3.3” directly into “ATtiny85” pinc “Vcc”, when in reality it needs to be decoupled through capacitors “C3” and “C4”.
Yes, I am a huge noobs. But thanks for reading this