Resistance Disappears at Same Spot

I don’t ride this section often, but every time I do the resistance on my trainer (Neo 2 and running Zwift on Apple TV) disappears briefly before returning.

The section is when headed from Hank’s, across the 360 Bridge, and then taking the left fork in the road to head toward Sequoia Circle.

It’s somewhere right as I enter the ‘transition zone’ of the intersection. It doesn’t last long, but long enough for the legs to make a few unanticipated pedal stokes at a rapid cadence.