Q.What’s The Matter With The Tree
Leaves hang down and are curling , some yellowing

Certified GKH Gardening Expert
This appears to be the beginning of bacterial leaf scorch. This can happen when soils remain saturated without a dry out. Copper based fungicides, and keeping all infected growth disposed of away form the area can help.
Here is an article that will help you with copper fungicide use:
https://www.gardeningknowhow.com/garden-how-to/info/what-is-copper-fungicide.htm
This article will help you with the care of Red Maples:
https://www.gardeningknowhow.com/ornamental/trees/maple/care-of-red-maple-trees.htm