Upgraded to x20 40 minutes ago from x5

We got a reset yesterday, and I spent quite a bit of time testing Astro across different workflows, projects, and even quite a bit of new things. Later, I kicked it off in multiple projects. About 10 hours ago, I decided to focus on a single project instead, just to get a better feel for working on one project at a time. Working this way consumed about 20% of my weekly limit over the entire day, eventually bringing it down to 0% around 40 minutes ago. This is based on the screenshot time, not the time of this post. Once I hit 0%, I figured it was time to go x20 and upgraded. However, after only about 40 minutes of continuing the exact same workflow on the same project (the workflow that had consumed roughly 20% over the entire day) it suddenly consumed 24% of my new (x20) weekly limit. Is this a bug, or is this expected behavior? Note: I forgot to mention, using 5.6-sol on medium.