The foliage brush became invisible

After deleting some foliage assets in the Content Browser that I wasn’t using anymore, the foliage brush became invisible. I’m still able to paint foliage on surfaces if I left-click the mouse pointer, but I can’t see the brush anymore. This is with a raytraced project. I tried restarting the Engine but that didn’t fix it. Has anyone experienced this before?

Ah! I found the answer. I’m using raytraced translucency and i had just disabled refraction and that caused the brush to disappear (before that it looked like a cool magnifying glass, which seems to be product of the raytraced refraction). So, in short it seems that the brushes are not very compatible with raytracing and are dependent on the raytracing settings.