Too many vertices in the tile (7332 > 4095) error! Please help! - SOLVED!

Hi so according to the console, I have too many vertices in my mesh . It says you can enable ASTAR_RECAST_LARGER_TILES under the ‘Optimizations’ tab in the A* Inspector to raise this limit. Or you can use a smaller tile size to reduce the likelihood of this happening.

But when I look under the optimisation tab there is no option? Other than the apply button.

How do I enable ASTAR_RECAST_LARGER_TILES?

Update - Solved - I realised I was scanning to many navmeshes.