The line on the vault mat?

[lil_gymnast_alanna]

In the world champs vault final, the commentators noticed that the flag for out-of-bounds- was going up even when the gymnast was still in those train track lines.
I was wondering if the red line going down the center of the mats has anything to do with the flag going up?

 

[bogwoppit]

With the newest version of the FIG rules a gymnasts has to land with their feet on the line. As in one on each side. If they do not an deduction is given.