Character cannot walk onto planks

I made a test level by laying out a few wooded-plank platforms I found in the starter content - “SM_Env_Wood_Platform”. I placed these on a floor which is a little below the level of the planks. If I walk off the planks onto the floor, my character cannot get back onto the platforms. I looked into the “max step height” of my CharacterMovement controller, but it doesn’t seem to matter what value I use. I can’t walk back onto the planks. As a test, I took a “linear stair brush” and put that on the map, and I am able to walk up and down that, even though the stair steps are higher than the planks I cannot walk on.

What prevents me from getting onto these planks? Thanks for any suggestions!

Sounds weird but you could trying updating the option on the object “character can step up on?”