No problems with rc2 or rc3 but rc4 is 'broken'.
Whatever the combo of installation choices, it eventually stalls.
If defaults are selected, it falls over at PySolFC.
If PySolFC is deselected, it stalls at penguin-command.
Etc., etc.
Sorry, guys.
Umm, just one more thing. Why is the default 'English' given as 'English(us)' ? Good heavens, chaps, you are respected members of the Commonwealth, even if you don't play cricket any longer*.
*Canada was one of the first nations to play international test cricket. {Sadly, England was not your opponent on that occasion.}.