If it looks like we skipped a month, have no fear! We didn't skip it. Apple just jumped forward a month, that month.
So streams that happened in Jan--which used to be reported as Jan--were reported as Feb. Something similar happened in April, where April streams were reported as March 31. March streams were reported as March 3.
And July 2017 streams were reported by Apple Music as "Aug 4", so they show up as August in DistroKid. Which makes it appear as if July was skipped, even though it wasn't.
The same thing occurred for January 2018 and April 2019 earnings.
We know this is confusing. And apologize. Hope this helps clarify!