The effect of targetting and then getting LP and level seems not to work.

First I summon Crystron Needlefiber

With it's effect I SP Morph King but even if there is a monster on my side or the opponent side of the field, no effect is offered by the game.

Even by clicking on the card there is no effect to activate.

I don't know if I play it wrong or if this is a real bug.

If it is a bug I hope it will be fixed soon.

there is no bug, it is part of Crystron Needlefiber effect, you cannot activate the effect of the monster summoned during the turn it was summoned by needle effect