7% of 5hr gone just opening the app?

Hi, still a bit of a noob here, but is there any reason 7% of my 5hr was used just by opening the app? No tasks run, literally just opened it up and saw the numbers. No usage is shown at all, but it did just happen so it might show up later, I guess. Just wondering if this is a normal thing or if anyone else has seen this?

I'm on the Plus plan, so it would drain pretty quick, but still, 7%?

The 5hr limit started counting immediately after opening as well, so it's not a task from a few hours ago or something. No auto-running or unfinished tasks.