Brown leaf on my pothos

Hi everyone,

I’ve had this pothos since December. It has grown a few new leaves, but growth has been pretty slow.

Recently I noticed that one leaf has a brown, crispy tip, as shown in the picture.

I water it about once a week, usually when the soil feels dry. The light hasn’t been the best lately since it’s winter and it’s cloudy most of the days.

Does this look like a watering issue – overwatering?

Any suggestions would be appreciated!