Yeah. I tried everything in my power to direct you towards the solution without actually telling you the solution. Its not easy to see what you need to do, but with very little options and some experimentation, its not going to take you too long to get to it and from that vantagepoint it is very rewarding when the attempt lands.

very clever puzzle, really enjoyed it. took a bit to figure out how to get the sphere where it needed to be.

It has been a while since I played the map, but I think that is by design. The other 2 cubes spawn later when you solve a puzzle.

I tried restarting the map, I still only get two cubes.

@Piotr_mil: hmm, thats odd. If you replay the map do you get 4? I'm not sure there's anything I can do about this.

I had a very weird problem in this map: instead of 4 reflection cubes, only two fell were dropped.

I finally gave the updated version a try. It is pretty different from before and this time the sphere behaved as it should too. It was really wierd what it was doing before. I like the changes concerning the blue gel. This works much better.
I have to say I was vastly confused for a few minutes when I recieved a 3rd reflector cube. It took a few minutes to deduce my next move after that when what I was expecting was the laser field turning off.

Fun map! I'll have to try your updated version.

Spoiler video: http://youtu.be/9fWw7aPVjJI (22 minutes)

I've updated the map. The first hint no longer applies. Yes, paint is still gone on a reload, but its now a mandatory action to spawn the paint, and that action can be easily repeated.

Made it to the exit. The large rooms make this test somewhat disorienting. All in all I enjoyed solving the test but I think I would prefer it if the exit was a bit more visible from the beginning ... maybe you can work with glass to achieve that? I recorded a video of my way to the exit , blind run recording somehow didn't work. It took me something between 20 and 30 minutes to exit I think.

HINT: Read me if you have placed the sphere on its socket.
The sphere will trigger blue paint on the lightbridge. If you quicksave/reload, that paint will be gone. In order to get the paint back, you will have to press the pedestal button to respawn the sphere.

HINT2: Read me if you see the exit door, but the chamber seemed to contain a flaw.
If you think the chamber is faulty, the lasercatcher probably seems too high. This is because your path is not right.