1st welcome to the forum. Since I'm not a fan of hidden or visually impaired levels I looked at other areas that I could see. Was this the intended way to win? Spoiler: Win
I believe I won as intended and I did locate a hidden draggable and I needed to use all of the areas. Your rotating mechanisms didn't move smoothly but they would have if you used a rounded corner where the mechanism hits the stone blocks. The metal block on R made R very unstable in the corner and made it difficult for B to mount and you also didn't provide a recovery point for B to try again when B fell to the surface. MetalR also didn't always fall to the surface without becoming unstable so be aware of that too. Overall, a nice level but you do have a shortcut as per my 1st comment. Thanks for sharing.
Hi and welcome...not sure if I did it right butvI had fun...Thanks for sharing and well done @Kappabeta
Hi and welcome to the forum. This is a very nice first level with some creative levers. A bit of obstructed view here and there, and one lever lurking in shadows, but your design made it easy to know where to look. Nicely done.
Very nice puzzle. Unfortunately, I could not find a hint for the "coded" passage. On the other hand, the code is not excessively difficult.