Try different feeder worms. My beardie is brumating right now and the only way I can get him to eat is by hand feeding what he likes. I hand feed his greens and when he decided he no longer liked crickets and dubia roaches, I put him on worms.
Namely super worms, silk worms, phoenix worms, horn worms, occasional wax worms and butter worms.
The proper size of course.
For it's smaller size, stay away from supers at the moment. You can get all the others in small sizes and they are soft enough that you don't have to worry about impacting.
Truth is, crickets have low nutritional value anyway. Too much hard stuff and not much meat.