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Can you show me some examples of posts where this is happening please.

And maybe the lat / long coordinates from Google Maps of where they should be.

Thanks

for example this one , I already changed the tag but it still points to a different place where now 8 wrong tags are placed

this post and this post I placed at two different places but later I noticed they both got the same wrong tag too

Thank you for the extra information. We will investigate this issue.