[Blocks Rodgort Progress] Event "Defeat the Giant Branded Griffon" uncompletable in Fields of Ruin

Said event (https://wiki.guildwars2.com/wiki/Draw_out_and_defeat_the_giant_Branded_griffon) shows up in the UI when near "Wreckage of Doomspy Watch", but no Map icon or actual boss can be found.

Screenshot of the UI and missing boss: Screenshot of the map, no icon:

I have found the event in this state on two servers. 10.83.75.99:0 and 206.127.159.105:0. Since Fields of Ruin isn't that populated, it's hard to test it on more servers.

The completion of this event is necessary for the Rodgort Precursor collection, which I now cannot complete. I understand that fixes to the event or collection take time, so would it be possible for a GM to just flag the "Drawing the Enemy" Trophy for me in the meantime?

Thanks and greetings!

The event finally worked on 206.127.159.120:0, but the other text was still shown as described.