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

[FoxWise]

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

[FoxWise]

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

?

[Wile_E_Coyote]

Aux;1 aux;2 aux3;

Hello! I’m filling a tree and after I, sometimes, get this funny behavior AUX;1 AUX;2 with the same histograms inside but with different events in each ;1 and ;2… Can somebody please tell me why this is happening? Many thanks, Stefanos

[eguiraud]

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

Cheers,
Enrico

[FoxWise]

Done, thanks!
Now its here:

TChain::CopyAddresses:0 warning in RDataFrame Snapshot of TChain with multiple files with objects