Routing is blocked by extensive overlapping pads on different nets around U4 and its support passives; autorouting would disconnect those pins. I generated 16 neckdowns, but placement must be repaired first.
- Required: Re-place the overlapping U4 support network while preserving the board outline and fixed connectors.
- Then: Regenerate neckdowns, autoroute, and run final DRC.
Approve the placement cleanup so I can continue.