Feel like this issue is related (and fixed) in this thread:
TL;DR; the 3.3.0-14 docker image was running php 8.1 and it is not deeply tested.
Image recreated over php 7.4 and (at least in my laptop) all works fine.
About the rc1 issue… I probably pulled the code from git in a bad moment because today the build script worked great with rc2. I will rebuild rc1 to see if I can fix it (although nobody will be probably interested in rc1 images right now).