Martin Ždila

It is probably a bug of all Chrome-based browsers. See also https://github.com/Leaflet/Leaflet/issues/6101 or https://github.com/Leaflet/Leaflet/issues/3575.

@mariusandra just for sure - do you have HiDPI screen? On regular DPI screens it is not reproducible.

In Chrome (95), directly from https://pigeon-maps.js.org/. It is not always visible there, just if you pan a lot then sometimes it appears: 

> If I enable 6x CPU throttling in Chrome then map panning is a pain Actually if throttled then pannign is super-choppy only when dragging with mouse. If I give...

If it blocks for you then use workers.

I see that problem now reguralry on the map. Is it a knwon problem?

@olt, full process is described at https://github.com/FreemapSlovakia/freemap-mapnik/blob/fe8686aef2072dd6ba6eb05c3444cd8c5909603e/doc/INSTALL.md#setting-up-minutely-diff-applying-working-notes [limit.geojson](https://github.com/FreemapSlovakia/freemap-mapnik/blob/fe8686aef2072dd6ba6eb05c3444cd8c5909603e/limit.geojson) I'll check which elements are duplicated in the evening and will update it here.

Initial import was done cca 2 months ago and since then minutely diffs are being applied. Some stats on roads table: ``` martin=> select count(1) from osm_roads a join osm_roads...

I will try to prepare testcase once I'll be little less bussy. Till then maybe you can use my answers: > this is the latest binary? It was the latest...

Also, just for the illustration: This area was recently modified and it is rendered incorrectly. Each color strip represents a hiking relation and both strips should go along all the...