This is the 3rd month in succession where the Mozscape index has been delayed. Myself and clients are losing patience with this, as I am sure many others must be.
Just what do you suppose we tell clients waiting for that data? We have incomplete and sometimes skewed metrics to report on, delays which then get delayed further, with nothing but the usual 'we are working on it' and 'bear with us'.
It's becoming obvious you fudged the index update back in January (see discussion here with some kind of explanation finally from Rand: https://moz.com/community/q/is-everybody-seeing-da-pa-drops-after-last-moz-api-update), and seems you have been fumbling around ever since trying to fix it, with data all over the place, shifting DA scores and missing links from campaign data.
Your developers should be working around the clock to fix this, because this is a big part of what you're selling in your service, and as SEO's and marketers we are relying on that data for client retention and satisfaction. Will you refund us all if we should lose clients over this?! .. I don't think so!
With reports already sent out the beginning of the month with incomplete data, I told clients the index would refresh April 10th as informed from the API updates page, only to see it fudged again on day of release with the index being rolled back to previous. So again, I have to tell clients there will be more delays, ...with the uncertainty of IF it WILL EVEN get refreshed when you say it will. It's becoming a joke.. really!