The shack roof is two automatic slopes meeting at a 5 m ridge, but they
stopped 0.71 SVG units short of each other. An agent dragged across the
roof dropped to the 2 m ground in that strip, and a replay shows a player
standing on the ridge. Each slope now reaches the line where the two planes
meet, so the roof is continuous. Planes, heights and ids are unchanged.

Found by checking replay standing positions against the height data; a
search of all 880 near-gaps between opposite-facing slopes on every map
found no other place where the editor drops a level, apart from two
Corrode blocking-volume tops left for review.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>