Rain isn't a problem if being much slower than your own timelines (and the subsequent shareholder expectations from such) is part of your modus operandi. Not surprisingly this already appears to be occurring. From 30 August 2017 announcement:
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch