[Trinidad] tr:treeTable PPR not refreshing in xhtml page managed by Spring

[C J-6]

I'm new to Trinidad. I presume that this issue has been seen before, but I don't know where it's classified.

I'm trying to implement a tr:treeTable in an xhtml page managed by Spring. The tree displays, but when a RowDisclosure (+/-) button is clicked, nothing refreshes on the page. If F5 is pressed the nodes are refreshed as open/closed as they were clicked. So the events reached my tree model. If I add a RowDisclosureEventMethod it gets called.
Has anyone used trinidad PPR with spring and did anyone encounter this issue. Any info would be helpful.

-CJ