It is quite odd, I can’t seem to be able to find the bit of code that causes this.
I tried a fresh act 3 start save.
Beelined it to the bridge, got the upgrades.
And the first practice battle still gets the d4’s like in your case.
But normal battles don’t. Wonder what’s happening there that makes normal battles update but not the practice one.
Either way, kinda feel like Arc should add again the option to go pick fights, if for some reason you want to farm goons.