GeoJSON LineString (a closed loop) display broken at zoom levels above 18

[khatribharat]

Bug Demo : jsbin link
mapbox-gl-js version: : 0.32.1

Steps to Trigger Behavior

If you zoom out, the LineString displays properly, zooming in to levels above 18 breaks LineString display. This only occurs with LineStrings which are closed loops.

Expected Behavior

The LineString should display at all zoom levels

Actual Behavior

The LineString is broken at all zoom levels above 18

[ryanbaumann]

@khatribharat Geojson sources default to cut tiles at a maxzoom of 18 with geojson-vt. Increasing this value to 21 can address your problem.

https://jsbin.com/geyubemapi/1/edit?html,console,output

map.addSource("data", {
	"type": "geojson",
        "maxzoom" : 21,
	"data": {

That being said, this does look like a bug. The self-intersecting linestring should not appear hidden when over zooming past the max tile size of the source.

[lbud]

I believe this was fixed between v0.33.1 and v0.34.0 (likely #4413) — confirmed by switching Mapbox GL JS version in the fiddle provided above. Please open a new issue if you see this again.