Upwork time tracker app deletes time when you stop?
I'm new to the time tracker app for upwork, but I'm trying to understand. The timer said 2:17 minutes, I wanted to go take a break and didn't want to leave the tracker on while I wasn't working, so I stopped it. It instantly changed to 2:00. Last screenshot 17 minutes ago, not sure if that's relevant or just a coincidence.
Is this going to happen every time I take a break? Do I just leave it on even if I'm not at my computer because it'll round down 20 minutes of income every time you do? If I leave right after a screenshot is it okay? This is beyond frustrating, and I can't find any documentation about this.
EDIT: as another example, I'm doing game dev, and right now I'm experiencing full computer crashes from the project. Just had another 15 minutes down the drain.