Stair Path Arrow partially hiding behind tread

[pieterschiettecatte179750]

No I mean it literally stopped working after a few minutes. One moment all was fine, but after half an hour of continuing in the model (not worked on the stairs though!) the arrowhead was hidden again. I checked the view settings risers/treads are off.

[FG88]

It seems to be a bit hard to tell what's going on not seeing the actual model. I would play with other visibility parameters under VV>Stair. See if that can fix it..