Domestique I would try rotating the pot gear one tooth against the rack gear. From your video it looks like the pot can't turn any further and the rack gear is still trying to turn it. More than likely not tested correctly when assembled. Wondering are the silicone heel stop pads in place?
Place pedal upside down on a table.
Remove feet screws and bottom cover.
Make sure the pedal is in the heel down position, pedal still upside down.
Pull the spring loaded rack gear back away from the pot gear.
Turn the pot gear one tooth in the direction on my diagram then release rack gear.
Test the travel of the pedal to make sure it's not jumping at stop in the toe down position. If all is well recalibrate the pedal in the in your device to make sure it has 100% travel.
View attachment 114151