Similarly, I have tried to use the combination where on the science track you get to take the benefit of any of your other cubes on any other track. When I used that to upgrade my invention card with the same benefit as the science track to the top row, I lost that upgrade because apparently you cannot twice take the benefit of the same cube. Again, there is no mention of this on the card. Perhaps it is buried somewhere in the rule book.
There seem to be a lot of combinations I have tried that fail like this. Anybody else have this issue?