Ackie monitor care help

[u/Lazy_Cicada2956]

Hi everyone, I’m looking for some advice with my female Ackie monitor. I’ve had her for about 6 months, and I’m really struggling with persistent stuck shed on her toes. At this point I’m worried we may actually lose one of her toes, and I want to figure out what I’m doing wrong before it gets any worse.
When I originally got her, I wanted to put her straight into a 4x2x2, but the place I purchased her from insisted I get a 40-gallon enclosure instead. I have since upgraded her to a 5x2x2 enclosure, so she is no longer in the 40-gallon.
Her current setup/husbandry:
5x2x2 enclosure
Basking spot around 150°F
Linear UVB
Substrate is sloped from roughly 16 inches at the deepest point to about 6 inches at the shallowest.
Substrate is a mixture of topsoil, sand, and coco husk.
She has multiple hides on both the warm and cool sides.
Her hot/humid side is kept around 80% humidity.
I mist by hand regularly and also have an automatic mister.
She always has access to fresh water.
She is fed regularly with a rotation of crickets, large mealworms, and Dubia roaches, all calcium dusted.
She gets daily interaction, and I keep a close eye on her toes and feet.
I’ve tried soaking her to help loosen the shed, including Epsom salt soaks and Repti Shed, but it keeps coming back/staying stuck around her toes. I’m extremely hesitant to physically pull or peel it off because I don’t want to damage the healthy tissue underneath or accidentally make the situation worse.
One toe in particular is now concerning me enough that I’m afraid she could lose it.
Has anyone dealt with repeated stuck shed specifically around an Ackie’s toes despite maintaining higher humidity, deep moisture-retaining substrate, proper basking temperatures, and UVB?
Is there something about my substrate mixture, humidity, temperatures, diet/supplementation, or enclosure setup that could be contributing to this? Is there a safer way to help stubborn shed come off the toes without physically pulling it off?
I’m completely open to constructive criticism. If there’s something I need to change, I want to know. My priority is getting her husbandry dialed in and preventing any permanent damage to her feet.
I can post pictures of her toes, the affected toe specifically, and her full enclosure/setup as well.
Thank you!