Shyvana Freezing

I just bought Shyvana from the sale and tried using her in Coop Vs AI Intermediate.

While using her, the character keeps on freezing and doesn't accept any input commands such as skills and movement. At first, I thought it was lag but my ping was fine and all others things such as enemies, HP bar being damaged, allies were all moving okay. Played another game with another hero, no lag or freezing issues. Tried Shyvana for a 2nd time and the freezing issue was evident again.

Add: This problem was in both normal and dragon form.