Solver insists on using Muscle Memory alone

[0v7]

Required Information

Class: Goldsmith
Level: 60
Craftsmanship: 578
Control: 548
CP: 337
Recipe Name: Aurum Regis Nugget
Recipe Level: 58
Solver Seed: 47488, (edit: 90956, 93693, 35161)

Expected Behaviour

The solver produces a solution to maximize HQ% using CP.

Actual Behaviour

The solver just uses Muscle Memory, which only increases Progress, resulting in no HQ%.
This only occurs less than half the time.

Steps To Reproduce

I haven't changed any of the solver's settings.

1. Select a recipe (I've found this happens with any crafter that has Muscle Memory unlocked)
2. Run the solver
3. Get the result of just one Muscle Memory and no HQ%