I just completed A Giant Battle and I received a blue print that I should actually not have received.
Different screen capture show time lapse style..
First image show my current Epic Forge Setup (You can clearly see that Dama chain is already level 6)
Funny part is that it is the only one that is maxed out and sadly I got a 7th blue print..
Here you can see the 7th Blue print to upgrade the Dama weapon chain..
Here you see that after applying that 7th blue print for the dama weapon chain it did nothing.
A ticket was submitted but I wanted to let everyone knows that this issue exist.
The Epic farmyard or the Evil Queen chain after you had upgraded a chain to level 6 you did stop receiving that specific blue print it seem that it is not the case for the MCC chain and Epic Forge.