Understanding my 2 Hour Power

Just did a 2hr ride where I avg’d 250 watts on My Garmin. Intervals interpreted it at 248 watts which is fine, however I got the email about prong my 2hr power but it says I avg’d 241watts. Can anyone help me understand what is going on here?

Short stops or pauses are probably the cause…

Weird, how come my rides avg power would be 248, but my best power for 2hrs would be 241w. Just curious what the difference between 2hrs on the ride and 2hr best power

The summary information (‘ride’) is based on moving time, excluding stops.
The 2 hr best power is one stretch of 2 hours, including stops.