I don't know if this is a bug report for this mod, or "The Construct" (so I'll put it in both :S ), but regardless, in the Construct Mod you have the choice between two starter relics ("Clockwork Phoenix" and something else.), so when you pick up the diamond, the phoenix doesn't change (I haven't tested the other one yet, but this is technically the 'second starter', so that might be the case).
If this is something you can deal with, great - if it's on the Construct's end, close this issue and forget I ever said anything ;)
I don't know if this is a bug report for this mod, or "The Construct" (so I'll put it in both :S ), but regardless, in the Construct Mod you have the choice between two starter relics ("Clockwork Phoenix" and something else.), so when you pick up the diamond, the phoenix doesn't change (I haven't tested the other one yet, but this is technically the 'second starter', so that might be the case).
If this is something you can deal with, great - if it's on the Construct's end, close this issue and forget I ever said anything ;)