After concluding The Crystal crossbow mission it says that next mission is Scyther, but like i already explored all the Point of Interest in World that mission not appear so it is impossible to get the last ancient weapon.

After concluding The Crystal crossbow mission it says that next mission is Scyther, but like i already explored all the Point of Interest in World that mission not appear so it is impossible to get the last ancient weapon.

I assume this is a main problem with missions that “need” a POI.
I ran in a similar issue in a campaign and finally didn’t only get a POI for the Scyther but also for the NJ side missions “Byzantine” and so all the following.
I reported this via F10 ingame report tool.
My workaround for campaigns since then:
I don’t explore all POIs as long as I’m not close to the end.
Yes, thats a solution to not appear this bug, but they must solve it. If all POI are explored a new one should appear on the map.