Greek font is broken

[sucrerouge123]

Greek font doesn't appear correctly in the map, as you can see in the screenshot of the app below.

How to Reproduce
Just visit any area in Greece which has named streets. Specifically you can visit 35.187123, 25.711711 and see that the street "Κωνσταντίνου Καραμανλή" appears as "Κωνσταντι΄νου Καραμανλη΄ " (the punctuation is not above the letter but right after it). Also, check the perpendicular nearby road "Ιωάννη Σακκά", which in the map is being shown as "Ιωα΄ννη Cακκα΄ " (the Greek capital letter Σ is represented as the Latin letter C, which sometimes happens in Greek texts of the Byzantine era and now is only being used from the Greek Orthodox for specific purposes).

Expected Behavior
Greek alphabet should be represented as in the OSM map, which is correct.

Versions affected
v48.0

[westnordost]

You forgot to attach the screenshot.

[sucrerouge123]

Right!

[westnordost]

Can you link to the location on the map this is happening or better the exact element?

Also, if you click on a quest for an element that is displayed wrongly on the map, how is it displayed in the quest UI?

[sucrerouge123]

For instance this element is being shown incorrectly on the map, when the newly added shop overlay is enabled (this is shown in the screenshot above).

https://www.openstreetmap.org/node/5551458887

When you click on the element for some quest everything is fine!

[westnordost]

Okay, I see the data from the map tiles on Jawg.io is also correct.

I created an issue in tangrams/tangram-es#2335 , but as this project is pretty much not maintained, this will probably never be fixed. Closing this one as this is an upstream issue.