Taking clones from a flowering lady take longer to root, and is more difficult than cuttings from vegging ladies.

First, the difference in lighting schedule and light spectrum put it in shock.
Second, it has to revert back to a vegetative state.
Third, it needs to still have enough energy left to produce roots.

Use rooting hormone, following directions.
Keep it in a humidity dome, (or cover with plastic baggie to keep it real humid) but open to fresh air every once in a while.
Mist the cover or dome with properly ph'd water, Don't mist the cutting. (mold possibility, plant respiration problems)
1 - 23w CFL at 6 -7 inches. (minimal light till rooted)
No nutes or additives till well rooted.
Keep your fingers crossed, but take 'em while in veg next time, lol.