Today I fixed some bugs and made some changed. Because of the bigest issue, I released V1.7.1 (clicking on objects with rigidbodies (e.g dust bunnies or vehicles) wasn't working, after one of these objects fell through the world).

Change log:
changed:
- pressing e is blocked while being in the design menu
- center of scalable objects, which has no normal map, was moved from the center to the bottom
- thumbnail of the game in the main menu

bug fixes:
- wrong scale of parts of opening items, if the base item was scaled
- clicking on objects with rigidbodies (e.g dust bunniesor vehicles) wasn't working, after one of these objects fell through the world