(if you’re wondering why your message ended up in this thread it’s because I suggested that the Ukrainian moderators move it here, which is where most of the discussion is).
To summarise:
- What happened is described here.
- I believe that the data has been fixed. You can follow the steps here to make sure.
- The rendering servers are working with clean data (how this works is a bit complicated, but see here and here, and other posts above, for more information).
- There’s a technical change in progress to minimise the effect that this sort of vandalism will have in the future.
However, some people are still seeing problems in the map tiles in their browser.
- Mostly this is due to their own browser cache. Try an incognito or private window, or a different browser, to test this.
- Sometimes old data is getting served from cache - this is one report, and the DWG are still getting others. See especially the post immediately above.
It probably isn’t possible to completely prevent this sort of thing happening in the future to OSM’s “standard layer” - it’s designed for mapper QA. However, if you’re creating a website, you absolutely do not have to use this layer. For a small local site, I’d probably just prerender down to whatever zoom level you’re interested in, and host statically.
I’ve reposted this as a bit of a summary as it’s clear from a few of the posts above that not everyone is reading previous posts in the thread before jumping in with “I’ve seen a problem”. This is entirely understandable - there are 190 posts in it!