Transparency problem with camera close to objects

Hi,

I have a weird issue. I managed to get transparency working correctly on my game but, when camera is close, parts of the transparent objects disappear. If I change the render queue to background, then the problem is not there anymore but the SkyBox will "cut" the transparent objects. Here is what I am talking about:
1 - From a distance, render queue transparent - everything okay

2 - a bit closer, the opaque blocks will be seen in front of the glass

3 - render queue to background, everything is good but the skybox is "cutting" the glass


Any idea what can I do to avoid this behavior ? I want everything to be rendered like in case 3 but the skybox should not cut the glass.