I'm following a YouTube tutorial on Character Rigging. After adding the Auto-rig & IK with the Duik Bassel, my character's knees tend to bend backwards; I need the knees to bend forwards. Does anyone know how I can fix the deformity?
You probably didn't rig it correctly and/ or the initial pose was not correct. Impossible to know without seeing your full layer structure and said base pose. These things matter a lot, especially since DUIK's code is less than robust and prone to producing all sorts of glitches.