It they stall out, then it is sometimes best to remove the inflo. Your digging it up (twice!) could have puts stress on the new fragile roots. This is why many of us use transparent containers to root them. Keep them dry and motionless until leaves are 6 inches long. When you see the roots, then it has rooted!

But I would keep giving it warmth and don't water it. Are the leaves growing at all?? Do you have a pic?

Maybe someone else can offer better advice.

Rooting Rule One: After the initial watering, do not water, move, disturb, or dig around a cutting until you see six inch leaves or roots are seen in a clear bag or bottle. Rooting Rule Two: If an inflo begins and the leaves are not growing or showing signs of constant growth, cut the inflo off so the energy is concentrated on rooting. Rooting Rule Three: If the stem is hard at ground level, you are still in the game. Leave it be. If you violate these rules, do not be surprised if you have rooting failure. Impatience is an enemy of success.