Sketch disappearing

Need help? We are here.
1

What’s happening? I press ESC to get out of sketch mode and my sketch disappears completely and I can’t get it back. Undo doesn’t work, there’s nothing to go back to in History.

Also, with the latest version the mouse buttons have changed? Now I can’t rotate the design with the middle mouse button?

Is it me, or has the latest Shapr3D version introduced some bugs?

2

If you don’t draw something in a new sketch before exiting, the sketch will be deleted automatically. I don’t mind it because it keeps the project from stacking up a bunch of empty sketches.

3

But I had already drawn something