Dear Sebastian,
First of all, thanks for your answer!
I’ve tried with a newest root version, but the problem is similar as here (TH...::Merge and alphanumeric bin labels). Inside the new root file (newFile.root), the latest bin is filled with the last bin of the first file (file1.root):
hadd newFile.root file1.root file2.root file3.root
I’ve tried with root versions 5.30 - 5.32 - 5.34 - 5.40 and the error persists. I can’t understand how you solved the problem you had shown at link.
Any other advice?
Thanks again!
Best Regards,
Victoria