Our ramp lifts up when the cubes are not on it, but as soon as cubes are placed on the ramp and we attempt to stack them in the corner, the ramp does not come up. We checked if it was hitting our arm, but it is not. What could the problem be? Als, just to mention, the ramp makes a crackling noise when it comes up. It is placed on an axel.
The gears are probably slipping so it’s just a issue with build quality, make sure you have bearings on each axle
Also @sam2 please re-categorize this topic to Tower Takeover as I assume that is the game you are playing.