Are the game objects scaled? There is an issue with this currently: Physic body scale issue? (DEF-521)
Could you run your game with “physics debug” enabled, as Björn suggested? 
Then take a picture so we could have a look.
Are the game objects scaled? There is an issue with this currently: Physic body scale issue? (DEF-521)
Could you run your game with “physics debug” enabled, as Björn suggested? Then take a picture so we could have a look.