The Get Overlap Infos is not very descriptive and some data is not being exposed. It's not clear what this node should be returning, and there isn't much that can be done with the return currently.
"From what I can tell from P4 history this has been around since the end of 2013, with a few changes in mid 2014."
"It should exist, it's just not very descriptive and some data is not being exposed that should"
Head over to the existingAnswerHub thread and let us know what's up.