Painting issue

does anyone know how to fix my messed up paint tool

 

Is part of the terrain or a custom object?

 

It’s paint on the terrain

 

The thing that the paint won't go on is part of the terrain?

 

Yeah

 

Have you tried facing it differently?

 

Like rotating it? No also those white lines are decal roads but each line is separate it’s not like a circle
--- Post updated ---
It might be a game thing though I went on other maps and I’m getting the same problem like it was fine and in fact the paint tool was working on that map the other day and then like started glitching and like I would paint and nothing would show up for little bit now this is happening.

 

Try clearing cache?

 

Set the Slope Mask in top right corner from min 0 to max 90.

 

Worked thank you!