Parking moving to rear-right before custom/present location?

[vfilby]

I setup timelapse + mainsail. The frame is triggered on layer change as expected but the tool head first moves to the rear-right position before moving to the custom position (or the preset one like rear-left). So on ever layer change, the tool head moves to rear left first, then to the custom position, then back and resumes printing.

Is this expected?