Pipeline minutes getting exhausted precisely the 1st day of the month?

We have been very careful lately to reduce our build times to try not to spend more than 2000 minutes for a month…

And this week as we were about to reach June, we were thinking we had been successful in that endeavour, because we hadn’t ran out of minutes.

And suddenly, today, 1st of June, a day in which we were thinking our quota would restart from zero, suddenly the opposite happens and we see the quote exhausted in https://gitlab.com/groups/gatecoin/pipeline_quota .

Is this a bug?