I have a oneup dropper and they are prone to sticking if the seat clamp bolt is to tight. Try slacking that off a little and see if it fixes it. For the record I love this post and it's a good performer. Does need lubing from time to time though and an easy job.
This bike in New Zealand is now on sale at Torpedo 7 for 8K!!! Small frame too! RRP 9.5K
https://www.torpedo7.co.nz/products/APEDMN2AF64/title/2022-trance-x-e--1-pro-29er-e-bike