Some duplicate decoder definitions have crept into our list of decoders. This is verifiable by running the jmri.jmrit.decoderdefn.DuplicateTest as an individual test (this test is not run on the CI ...

A few JMRI versions ago I was successfully able to use JMRI on my Mac with my white Roco z21 to automatically add locos to my roster using New Loco > Read type from decoder. Now however, on a ...