What version do you have? Try the latest one 1.16.
Viewing post in Fear The Unknown Dave Story comments
Which level are you referring to? That issue was present in level 2 in the past, but now you can't even pick up the trash. If it's happening in level 3, that's very strange because there's a video above showing it progressing without getting stuck. Please, if you can, describe the exact moment where it gets stuck—it would be very helpful for us to work on a fix.