Hi, don’t hesitate to post about the issues you have. OpenFL aims to be as friendly as possible for as3 devs so it’s always interesting to hear about issues from newcomers !
You were unlucky with haxe 4.2, I switched to Haxe and OpenFL from as3/Air 2 years ago and the transition was quite smooth for me (much easier than I expected although intimidating at first) but I’m mostly working with Starling.
Also there is a discord server Join the official OpenFL Discord!