TChain::CopyAddresses:0 warning with RDataFrame: Could not find branch named

I am having the same warning as discussed here two years ago.

Warning appears for every branch in the TChain that I am not saving to my Snapshot.
I have ~6 mil events and it appeared 3 times while it loops… Looks like it happens for very specific events?

Is this still unresolved? Can I ignore the warning?

ROOT Version: 6.22/00

I have noticed that my Snapshot file contains
and tree;3 has more events than tree;2.


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please open a GitHub issue with a minimal reproducer, I’ll take a look as soon as possible.


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Done, thanks!
Now its here:

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