When placing maps in item frames green arrows (map markers) appear, yay. However, if you put many of the same map in frames green arrows stop appearing on the map. In some cases I can see the additional green arrows with some z-fighting so I guess they are there but are drawn behind the map maybe?

MC-73 was a multiple bug report. The first issue about removal of green arrows when you remove maps was fixed. this issue was not.

edit: whoops, I duplicated MC-4168. please delete/flag whatever.