Monstera New Leaf Broken. Other causes include overwatering pest infestations heat stress or your Monstera being rootbound. If you removed some of the original soil when you repotted then some of the root hairs were damaged in the process and that may be causing the new leaves to react as they are.
When you think of monsteras you probably think of the characteristic leaf holes and perforations that set monsteras apart from other plants. If you prefer you can prop up the stems with stakes but a large pot does not help. Monstera leaves curling is usually a sign of underwatering or low humidity.
However when caught early these conditions are treatable and the plant can thrive after that.
A Monstera that is too young wont fenestrate until it is about three years old. For example in the attached image that growth has been in that exact state for a month. Repot your Monstera once a year then every 2-3 years when its older. I bought a Monstera Deliciosa and everything seemed fine for the first 3 months.