I'm getting less from 2.9

Completed 2.8 example Completed 2.9 example
2.8 gives me all I want 2.9 gives me much less
the shadow mask in 2.8 the shadow mask in 2.9
2.8 shadow mask 2.9 shadow mask seems similar
Masked overexposed layer, 2.8 Masked overexposed layer, 2.9
The masked overexposed layer in 2.8 is good But in 2.9 there is much less of it

three-exposures.scm-2.8.

three-exposures.scm-2.9.