Build credits roll over at 00:00 UTC on Sundays. Between that time and 00:00 local time on Sunday every week, the previous week’s build credits are shown in the plan overview. During this time, the displayed amount of build credits used doesn’t change. Build credits from the current week are still consumed, and this becomes visible once 00:00 local time arrives.
I think this should be resolved now, but let us know if it persists!
Fabulous; I will try to remember to take a look on Saturday evening.
I did an empty cache and hard reload in Chrome, and I am still observing this bug at Sunday 00:07 and 06:59 UTC.