I purchased this snake plant a few weeks ago and transplanted it into a plastic pot with drainage holes using the original soil (looks like some sort of cactus/succulent mix). The soil was moist when I got it, so I haven’t watered yet. It is in a corner by a window that gets indirect sunlight.

The tips of some of the leaves have been browning ever since I got it and spreading noticeably down the plant. I was afraid it was due to underwatering, but the lower layers of soil are still a bit moist. Does anyone have any insight into what this might be?