"The Jewel in the Crown" mission in Cuatro Colinas is bugged

[wanton ivy]

The version is 2024 winter major update.
The objective of that mission is "Harvest a Diamond animal".
I harvested a diamond Beceite Ibex. I also taxidermized it.
The mission just did not complete.

[lost stag]

For me as well, already submitted a ticket for that.
I had 2 diamonds on the map with the mission and it didn't complete