Tracked Inspection Rover Question

A couple questions for inspectors driving tracked rovers.

Have you experienced any problems with the tracks disturbing, shifting or damaging vapor barriers while conducting a zero degree turn?

What was the track material: rubber, hard plastic or metal?

The reason I’m asking is because two inspectors I’ve spoken with recently said that their tracks bound up in the barriers as they made tight turns. Barriers were not damaged. I’m curious if these were freak events or more common.