There seems to be a bug in Monitor Center for this version of Psychopy on Mac OSX, whereby the vertical screen resolution is automatically replaced with the horizontal screen resolution. I.e. if I input 2560 x 1600, it takes 2560 x 2560.
Am I the only one experiencing this bug?
P.S. it may actually be v1.83.04 on the website, but v1.84.0rc5 is what is listed under help>about