Can not move about scene in preview

Scene & World Building Terrain
1

My project has stopped allowing me to move around in preview mode, it appears that something has happened.

I can move in other projects, is there a setting somewhere that i may have switched on to make this happen?

It appeared to happen after I added a sound clip to the terrain, I have tried removing this but still the problem is there, any ideas?

2

Make sure the hand icon is clicked. The scene moves differently for each one of the tools you click. Maybe that is it.

3

Thanks, I dont think it was this. I ended up exporting out the assets etc and starting again in a new project, that worked.