I did a little bit of ingredient research, and the second or third ingredient listed on the Aveda conditioner is dimethicone, which makes the product technically non-CG friendly. The L'Oreal cleansing conditioner has mild sufactants, but not any that are recommended for removing dimethicone. This could lead to build up on your hair.
It does sound like you used a lot of product in your hair, but aren't necessarily able to get it all out. If you like the Aveda conditioner, I would suggest finding a stronger cleanser. There are sulfate-free options to removing silicones- cocamidopropyl betaine is a very common non-sulfate surfactant that can remove dimethicone from the hair.
3a/f/iii Before the chop- Donated to Locks of Love, January 2013
Modified CG since 11/5/11
CO-WASH: VO5 Vanilla Mint Tea Clarifying, DevaCare No-Poo
CLARIFY: CHS Treatment Shampoo (used prior to PT/DT)
RO: DevaCare One Condition, Regis Olive Oil
LI: Cure Care, As I Am Leave-In
STYLE: Re:Coil, Curl Keeper, Biotera Gel, Deva Ultra Defining Gel, GVP Liquid Sculpting Gel, Curls Rock Amplifier and Strong Hold Mousse
PT/DT: IAGirl's PT, One n' Only Argan Hydrating Mask