Climbing region issue

an object in one of my ages is a bit unconventional as a ladder, so I've had to do quite a bit of guess-work in making it climbable.
So far my best results have been with using the making it climbable tutorial, and it works alright, except one slight problem: when the avatar gets to the top of the object, if you try to move forward, the avatar begins climbing down on the wrong side.
If I get off of the object and approach it to climb down the correct way it will climb down the correct side, but that initial dis-mount makes the avatar climb down incorrectly.
Here's a video of the issue.
does anyone know how to fix this?
~Kia
So far my best results have been with using the making it climbable tutorial, and it works alright, except one slight problem: when the avatar gets to the top of the object, if you try to move forward, the avatar begins climbing down on the wrong side.
If I get off of the object and approach it to climb down the correct way it will climb down the correct side, but that initial dis-mount makes the avatar climb down incorrectly.
Here's a video of the issue.
does anyone know how to fix this?
~Kia