Zwiftpower - power curve issue

Does anyone know why my Zwiftpower curve would slightly off compared to my Strava data? Not a huge issue, just an annoyance as I set a 5 minute PB last night and was robbed of a few watts on Zwiftpower. I’ve waited for the lightning bolt to turn blue so the data fully up to date. The 5 minute data was in the middle of the activity, so it’s not an event cut off issue.

Strava activities are set to “everyone”.