Quest did not complete - Send Out The Explorer

Hi team,
Quest Send Out The Explorer has not been completed after conquering the colony.
I have logged out and back in multiple times, which does not resolve the issue.
I have tried a couple of times to look for an expedition with an explorer, and that did not complete the quest task that requires just that.
https://ibb.co/mzmVmPz
Impact:
Can't claim the reward.
Subsequent quests are blocked.

System information:
Windows 11
Brave browser 1.46.144 Chromium: 108.0.5359.128x