Hi. Ya, Some snakes are more stressed than others during shed and the substrate change now can affect her more than you think.
My snake had issues with bad shedding and humidity also and now its perfect. He takes skin off in one peace.
I also have a glass tank, screen top, using forest bark or aspen shavings, UTH. I put a normal dump, warm( not paper) towel, above and cover half a tank, also I make two wet and small (cca4cm) balls from moss and squeeze out the excess water, I put one in hot hide and one in cold hide. I dont even have to sprey the enclosure anymore, it keeps it about 70% if it drops, just check the towel and wet it again, also the moss balls
I don't like to spray the substrate alot cause im afraid of mold, RI.. ect if I make it too wet so I just spray little.
When shedding is over I use the towel above also on the small part of the screen top and less wet, so it keeps the humidity at 50%
Also, I cover part of the tank with foil, aluminium or plastic, both works well for me. Surely I leave space for air above as well, the tank has vents on the front so its good..
Worked amazingly well for me.
Good luck

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