kbuntu!
The repotting probably resulted in most of the feeder roots being damaged or lost. I would recommend that you clip off the remaining leaves (and in the future if you attempt this again I would clip most of the leaves before starting the 'operation'). I predict that if enough roots were left the plant will rally.
You still have about a month or so before it would go dormant so I think it has enough time to recover.
Keep us posted!!
Oh - and pictures of the beautiful plumeria trees in your area would be great!
