mapbox / mapbox/tippecanoe

Seeing some very strange behaviour with Tippecanoe around zoom levels 7 to 8

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Dominant language
C++
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Description

I've have a complicated layer created from all UK footpaths, inland waters, road, etc. Tippecanoe works fine for zoom levels 4-6 and 8-15, but at 7 and 8 it does something extremely weird - see image. (Apologies if this is something obviously I'm missing).
Screenshot 2024-03-17 at 00 11 03

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First steps

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Research direction

Start by reproducing the reported behavior with the complicated UK footpaths, inland waters, and roads layer, comparing output at zoom levels 7 and 8 with the working levels. The issue names no source file, entry point, or test, so locate the zoom-level processing path before investigating. Done means the anomalous output is explained and corrected, with coverage for the affected zoom levels.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
data
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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