It may have something to do with the substrate, I know you didn't want comments on that but, as a dragon walks they often will drag their bellies. It is a possibility. I you want you can try to replace the substrate with paper towels, see if there is a change.
And as you requested I will not get into the adverse health effects of a particulate substrate. :wink:
What size is the tank? 75gallon
What are the basking, ambient hot, & ambient cold temps? basking between 90-110 cool around 80 i think?
How do you measure temps? laser thermometer
What is the humidity? no idea
This is an important aspect to monitor, I would suggest getting a hydrometer.
Do you mist? no
Is there a water dish? yes
Do you
bathe your beardie? How often? used to regularly, havent in a long time, might start again
What do you feed? What and how often? salad (making a better variety now) everyday and crickets every other day
What is lining the bottom of the tank? walnut crushings (plz dont go on about this, iv consulted a professional i trust whos been raising lizards his whole life I am comfortable with this choice)
Just curious as to what this professional suggested about your dragons scales?
How often is the tank cleaned? i just kind of sift out loose lettuce and poop whenever i notice it
Do you use a heat rock? Under tank heater? no, never
What kind of lighting? (make and model of each bulb) 2 UV bulbs I cant remember wtf theyr called but theyr the ones everyone on this site talks about, reptisun 10.0 or something? searched everywhere for these, and 2 basking bulbs, one strong at the basking spot, one lower on the cool side (necissary to keep it warm enough)
Is the UV light a long tube, coil flouro, mercury vapor bulb? How old is it? tube light, replaces in january, brand new