Opening MachFive window in DP11 causes crash

[bkshepard]

I know MachFive is not supported in Big Sur. However, when I open a previous DP10 project that used MachFive3, everything--including MachFive--works fine until I try to open the GUI window for MachFive. As soon as I double-click the plugin slot to open the GUI, DP11 crashes every time. I tried it on several projects with the same result. Fortunately, I had been moving away from MachFive in the last year or so in favor of Falcon and UVI Workstation, but still have a few older sessions that use M5. As long as you don't attempt to open the instrument, you're fine. Otherwise...

[mikehalloran]

https://motu.com/en-us/news/motu-and-macos-big-sur/

MOTU virtual instruments (MachFive, etc.)

MachFive, Ethno Instrument, BPM, Electric Keys and Symphonic Instrument (any version) are not yet compatible with macOS Big Sur. Please continue to check this web page for late-breaking information regarding versions of these MOTU apps that will be compatible with macOS Big Sur.

[bkshepard]

Hey Mike,
As I said in my first sentence, I know it's not supported in Big Sur. I was merely reporting that projects I had created previously that included M5 would run, but if you open the GUI, DP crashes. That's all.

[bayswater]

MOTU virtual instruments (MachFive, etc.)
MachFive, Ethno Instrument, BPM, Electric Keys and Symphonic Instrument (any version) are not yet compatible with macOS Big Sur. Please continue to check this web page for late-breaking information regarding versions of these MOTU apps that will be compatible with macOS Big Sur.

Surely no one is expecting a Big Sur update for MachFive? I've pretty much made the transition to Falcon and haven't had M5 installed for a while. Even so, Brian's post reminds me to maintain a volume that starts up in Mojave in the event that Big Sur becomes necessary.

[bkshepard]

Yeah, I started moving away from M5 a year or so ago in favor of Falcon and UVI Workstation. I just had an issue where I needed to remix an older project that had used M5. Fortunately, in this case, both libraries were able to load in UVI, so I was able to proceed without having to re-record the tracks.