Its most likely suffering transplant shock. I am assuming it came to you bare root? This plant requires a LOT of light. I grow mine outside in Florida in almost full sun. These do go dormant on me in winter sometimes, and the reason why is the decrease in natural light. Once the day length drops to 11 hours and below, they disappear, but come back like gang busters in the Spring.
@sallyg, you must live a charmed life LOL. Many of my Alocasias go dormant in decreased daylight. Always lose Frydek, Purple Prince, triangularis, Poly, Low Rider, Loweii, sanderiana noblis, and a few others. The ones that stay up year round for me are reginula, Reversa, Serendipity, Maharani, Dragonscale, odora, Regal Shields and some others