Despite the fact that cuttings are, in fact, one of the simplest ways to propagate roses, mistakes made during the process can result in failure.
Instead, try to take a different path, at the end of which you will surely find success.
To do this in the fall, when it is time to cut the roses, cut the cuttings exactly the same way as you did before. You can leave the leaves.
After this, bury the cuttings in the ground to the depth of a shovel blade.
Please note: you should bury the cuttings lying down, not standing. Incidentally, the cuttings do not need to be covered; they will lie in the ground just fine until spring.
In April-March, when the soil recovers from sub-zero temperatures, the cuttings will need to be dug up.
Make sure they are still semi-woody and have a greenish tint. If some specimens show mold or have turned black, they should be discarded.
All that remains is to root the roses by planting them in prepared soil in the garden bed.