I've worked on a few projects lately where Command Z is not working as expected. I'll record something, hit Command Z and instead of deleting the audio file, another recent action is deleted (a change in a plug in, for example). Yesterday I was recording a software piano track and vocal simultaneously. When I hit Command Z the piano track was erased, but not the audio track. If I hit Command Z again, then a previous action (like the plugin change) was deleted, still not the audio track. Any ideas?
JD
Logic 10.2.4
OS 10.10.5