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First static PNG preview wrong on newly added mapframe
Closed, DuplicatePublicBUG REPORT


First static PNG, rendered (and backend-cached) directly after saving of page, containing newly added mapframe, tends to be wrong. Either blank world map (in case of OSM relation linked shape maps), or map with pointer icon missing (in case of point maps). It takes some time (order of ~10 hours; backend cache TTL, I suppose) for preview to get re-rendered correctly.

PNG rendered later (even 2x preview of the same map, requested from mobile device or after zooming-in using desktop browser) is rendered correctly.


List of steps to reproduce (step by step, including full links if applicable):

What happens?:

  • static map (1x) contains blank world map instead of correct preview. 2x alternative requested seconds later is OK.

What should have happened instead?:

  • correct preview should be returned

Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc:

  • user-agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36