Delete Image in Browser -- Cursor Jumps to random location?

Hi everyone, I'm testing out C1 to replace my Lightroom CC but I'm running into some really annoying behavior.

I have a basic setup with Tools on the left, image browser on the right and image in the middle.

I am browsing a user collection that filters by brand of Camera and my browser shows two columns of smaller thumbnails on the right.

If I scroll down this big list and select an image, then hit either DEL or CTRL-DEL (windows), the cursor seems to pick a random image to 'jump' to.

Sometimes the image is very close to the one I just deleted and other times it's way up the browser list.

This is highly annoying and makes culling my collection nearly impossible. Is there a way to stop this behavior?

Many thanks - I've searched C1's site, this forum, and the C1 options but can't find anything.