With a uke tuned to G_C_E_A the fingering is the same as a guitar but the chord name is a 4th higher than the guitar chord name, i.e. a uke fingered like a guitar G chord is a C uke chord. See chart below:

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I'm no longer allowed to go caroling at the psych hospital.
I guess Do You Hear What I Hear was a bad song choice!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware