Auto-login on account activation Anybody got any suggestions on debugging autoLoginAfterAccountActivation and activateAccountSuccessPath not working? 

These are set in general.php of my config but when a user activates their account (sets their password) they are redirected to the homepage and not logged in. The user is showing as active in the control panel.

Hayelp!

Hayelp! http://www.cartoonscrapbook.com/01pics-L/penelope-pitstop_L20.jpg
(Not necessarily a great answer to your question, but it's in the same wheelhouse and might be handy if you're working in this area)!

I remember having issues with this myself (to be honest the precise details are a bit lost in time for me - but basically IIRC it's by design that they're not logged in after creation, perhaps to force them to practise login/their password?  I can't remember but do remember I found it odd behavour) - anyway in my case the issues arose as part of adding user registration during commerce checkout.  It was discussed on Slack and the solution was that Steve Rowling made a very handy plugin to auto-login newly created users:
https://github.com/steverowling/autologin

I'm using it, works a treat.

(I should also wrap up my code for registration during checkout as a plugin and release that one of these days!)