What kind of soil was this plant in before you transplanted it? Is there a hole at the bottom of your pot? Did you put rocks or gravel beneath the soil and above the hole at the bottom before adding the soil? What are your watering practices?
If that soil was still wet after 2 weeks there are a few things to be concerned about. Type of soil before you transplanted? How often are you watering? What causes you to water, what signs? Or are you on a human type schedule, grins!
If the original soil was garden soil with clay, that would be a reason the water was held in that soil so long. If you used rocks below the soil thinking to improve drainage that would be a second reason. Those rocks/gravels/peanuts for packing cause a perched water table. Causing the soil to become saturated before the water is able to move into the larger pores of the rocks. Ugh.
Even cactus soil will do this when there is a layer of large pore material below small pore material. Make sure you have a drainage hole. Fill the pot with sterilized potting mix 1/3, then repot your sansevera adding soil around the plant, firming gently and leave just one inch between rim and surface of soil. Lift the bottom of your pot off the surface of the saucer or patio using pieces of tile 1/4". Always dump saucer of excess water asap.