Hi,
we fixed the known cases in which this happened with https://sft.its.cern.ch/jira/browse/ROOT-9463, in summer 2018. What ROOT version is this with? What does root-config --version return?
If it’s at least v6.16, can you share (even just one event of) the TTree so we can check/debug?
Hi,
I don’t know lsetup, but this issue should be fixed in v6.16, also available on lxplus.
v6.14 is very old in RDF years (it’s a recent development and it evolved very quickly and very much in the last 2 years), and not all bugfixes made it back.
If you get the chance to try this out on v6.16, and still see duplicate column names, please give us a way to reproduce the issue (e.g. sharing a few events of your TTree) so we can take a look.