CMD-Z corrupts environment macro

Hi everyone,

This is very strange behavior. You can download the projects here,

https://robertcharlesmann.com/wp-content/uploads/2026/10/CMD-Z-corrupts-Environment.zip

[This is a Direct Download Link]

The first project has a routing in the environment that has worked for years. It's usually a macro but I've unpacked it here.

The second project file has a small MIDI recording, then I pressed CMD-Z after the recording and in the environment the Channel switcher cables itself to the Physical Input which prevents any external MIDI signals. Also, all the operations cable themselves to MIDI output.

To replicate this you may have to make the macro again and unpack it.

Anyone have a fix for this?

Mac mini M5 Pro 24GB - Logic Pro 12.4

2 JPGs attached for quick look