[SOLVED] proper name format (first letter capitalized)?

Enable debug mode and maximum error reporting in Joomla global configuration then attempt to register to see if an error is present. Aside from that I don't know what to tell you as it's confirmed working. For it to fail it's either configured wrong or something is storing the previous user object directly after CB Auto Actions, try ordering CB Auto Actions as last in CB > Plugin Management.

CB Auto Actions is already last. Enabling debug shows the following at the top of the registration screen.
Notice: Undefined index: view in /mnt/vol1/home/t/h/thejun/public_html/components/com_content/router.php on line 48
I've no idea what this means but I've attached a copy of the file hoping that you might know

It's a notice coming from Joomla SEF. That happens when a content article URL is relative and missing Itemid then gets SEFed. Ensure everything else is also up to date if you've other incubator projects installed. Aside from that I don't know what more to suggest, perhaps you've something else installed that's overriding your changes; try using the after login trigger to see if it'll fire there.

Still doesn't work, although last night I created a user in the backend and when I viewed it from the front end this morning, there seems to have been a result, however the field displays "ucfirst(Philipa)". I did enter Philipa using a capital letter.

Does this give you any clues? Also not sure if it's related but I did install CB Auto Welcome (I use ACYmail to send welcome emails) and CB Emails over a year ago and they never worked.(They're now unpublished) You did have a look at the time but couldn't find a reason for them not working either. I have a number of other CB plugins that work fine

Looks like the extra formatting functions only work in conditionals and not in other substitutions. The below is tested and confirmed working.

Type: Query
Triggers: onAfterLogin
Access: Everybody
Query:
The above query will update first, middle, and last names in CBs table and change their first character to upper case. It'll then merge them together and update it in the Joomla users table.