Logitech seems to suck at software. Why do you need an online account to remap your mouse buttons?
Same for the harmony 1100 which is a universal remote but can’t ever be programmed again since logitech killed their online server. It had the secret sauce for generating the binary blob to send the device to program it and nobody could figure out how this mess actually works to reimplement it. It seems like the blob wasn’t just parameters but also all sorts of scripts that changed with the config.
Needless to say I steer clear of Logitech anything now. It’s joined my blacklist along with Samsung and LG.