I'm not sure I took your post correctly => you said upper right and east are the same height. So, did you start with upper right or with East?
If so - Raze says clearing the Dynamics helps (only the content, of course - not the folder itself.
http://www.kiya1.de/beyond/act1maps/waterriddle0.jpgI thought a bit about your problem => did you by any chance touch a differnt lever first?
Or => did you think you touched a lever, but you were too far away? Did you make sure, the lever was near enough (highlighted in grey). I can only assure you, this worked for me in all versions (from 1.0 until 1.43)
Hm, as a try => I just removed my dynamic in Act 2 (for fun) and loaded my game, it functions. But there are fewer files than before.
If you wish => send me your save game. I've got version 1.43 and would like to experiment with it.
kiya1@t-online.de