in lvl 4600 game states that I can move blocks (see print screen attached). I cannot move them because one (or more in this example) of the is under Crystal. In attached example there are other moves available, so I can proceed.
In earlier games I had examples were the only move was impossible. Only solution was to end the game and start level over again.
Furthermore i would like to know if it is normal that there are no boosters and/ore boostbot

available in this and newer levels?