I’ll take a picture the next time it happens in reverse. It’s not related to the wiper. From what I can tell the camera is picking up dark spots on the ground (shadows, puddles) as obstacles that it shouldn’t.Raining and wipers on today too? If so, it might the image processor getting the wrong idea at a moment when the wiper is crossing its field of vision. It's all a matter of timing for where the blade is when swiping across the camera area and when it it taking an instantaneous note of the surroundings.
There's a road near me that the car always wants to steer left to avoid running off the road at the exact same spot every time. There's really no reason for it to think I'm heading off road there. However, whatever it sees is giving it a false impression. There's no curb there, just mailboxes and occasional trees. They're not moving nor threatening to jump in front of me.