We built a guild monument. Then, my friend sacrificed 20 iron bars into the monument (tier 1 - lowest tier).
Once we did that, I was able to upgrade the monument "upgrade the claim" all the way to Glorious monument**
** I did not complete the structure for tier 2, tier 3 or tier 4. I just selected the building that was under construction & then I clicked "Manage the Claim" and upgraded it again and again
This seems to be a bug, right? Anyone else have this issue?