Shift+Click in map, to show in chat, bug.
I have never had the issue and I’ve never seen people reporting it. I play with several people who use non-English settings.
I would recommend you contact support with a few specific examples. It’s possible there is something wrong with the database file on your computer (gw2.dat) and repairing or replacing would resolve the issue.
Support can help you figure it out.
Good luck.
Is not that (corruption, etc), I mean, I can click the same “point of interest” 100 times and it will show the correct name on chat, but if I play 1 hour without opening the map, it’s possible the very first shift+click I do shows wrong name in chat, the problem is the map, not the chat, because I could even see the wrong name on map too. I think is something like “lag” on map not updating the name of the previous mouse over.