Inspected the editable STM32WL33KBV7 library source on 2026-10-06. No routing-source correction was made: the inspected source does not establish a concrete defect that safely explains the reported 38 ROUTINGUNROUTABLEPIN warnings. This is an incomplete repair, not a claim that the warnings are fixed or that the footprint has passed routing validation.

These are observations of the existing asset and baked scene, not a new datasheet certification of the land pattern. No dimensional edits were attempted, so there are no corrected dimensions or changed rule IDs.

All 33 terminal names have corresponding pad names and unique terminal pin numbers 1–33. Asset-to-scene positions agree after converting KiCad Y-down to Flux Y-up. Examples: PA2/pin 1 at (−2.5,+1.75) mm; TX_HP/pin 17 at (+2.5,−1.75) mm; VDDSD/pin 25 at (+1.75,+2.5) mm; GND/pin 33 at the origin. No missing, duplicate, inactive, or coincident pad was shown. This checks source association consistency, not an independent datasheet pinout audit or downstream instance net assignment.

The scene-tree output does not expose per-pad computed connectedLayers, padHoleType, or a numeric resolved clearance for these imported pads. Omitted fields must not be treated as empty connectivity or invalid pad types. The asset explicitly declares the SMD type and front copper/paste/mask layers.

The four user-defined rulesets only affect silk/fabrication graphics:

No custom source copper-layer, trace-width, pad clearance, or keepout rules were reported. The imported courtyard appears in the rendered Silk Shapes asset, not as a copper keepout zone.

Relevant system defaults, not demonstrated consuming-board resolved values:

The 0.5 mm selector-specific minimum deserves investigation against the actual board's effective rules, but its presence alone does not prove it is the pad-to-trace clearance causing the warnings. Do not replace it with 0, or arbitrarily impose a smaller manufacturing clearance in the library. Likewise, the 0.254 mm default trace is narrower than the 0.3 mm pad; the actual board may have wider power or impedance-derived traces. That cannot be determined in a zero-net part project.

Documentation lookup found a relevant general caution, not a diagnosis: “Keep out rules are bidirectional, meaning they apply in both directions between objects.” Source

The lead needs the consuming-board project reference and a fresh board-check result with affected instance/pad/net identifiers. Read that board's actual pad rules, net widths, copper layers, instance version, and obstruction records before choosing a source or board-rule repair. Repeated symptoms across three copies implicate shared data but do not distinguish the part from shared board constraints.

Publishing was not performed. There is no routing correction from this batch to propagate. If a subsequent source fix is established, its availability in the consuming instances must be verified against their source versions; publishing and instance updates remain separate, approval-dependent steps, followed by a fresh consuming-board routing check. The original 38 warnings remain unresolved by this batch.