customised blurring - it just blurs the whole thing

Hi, since I updated this morning, I can’t do any kind of customised blurring - it just blurs the whole thing. There is no elipse, rectangle of bezier option with Gaussian blur in the effects panel any more.

I've tried to attach a photo but I don’t know if it’s worked. 

To reproduce, drag Gaussian blur onto a clip and go to that section in the efects panel. No masking options appear there, just a box to click with ‘surprise me’ written on it. If you click that it just all gets blurrier, but you still can’t mask anything. The whole lot is blurred. 

Thanks.

Imogen