Nice, have confirmed it works on standalone built package too using hairworks demo scene? Besides checking that it builds without errors, please also check that when you run the executable it shows dynamic hair (I had issues with that on 4.18 so now extra cautious on verifying it actually works). 4.20.0 vs 4.20.2 doesn’t make much difference, if it’s 4.20.x it’ll merge into newest nicely.