Screenshot attached below.

As you can see from the screenshot, today is Jan 10th 2022, but on the Time to First Response Time chart, it says tickets created on Jan 7th 2022 took approximate 22.5 days(540/24=22.5) to respond. It doesn't make sense as today is Jan 10th, the max hours can be only 24*3=72hrs.
We are trying use this Time to First Reponse gadget to set out SLA and according KPI.
But if it occasionnly shows this kind of bugs, it severely damages the credibility of it.
Does anybody know what might have caused this malfunctioning?