Follow the recommendations below in the order in which they're listed until you've isolated or fixed your issue. Before proceeding, make sure to back up the MainStage application.
1. Make sure MainStage is up to date
Make sure you're using the latest version of MainStage 3. Choose Apple menu () > App Store, then click Updates in the toolbar. If an update is available, click the Update button to download and install it. Bluetail 2 0.
2. Check device or software compatibility
What is MAINSTage 3. MainStage is a music application designed for use in live performance. MainStage turns your computer into a powerful multi-instrument and e ects processor that you can use on stage when you perform. Whether you sing or play a keyboard, guitar, or another instrument, you can use MainStage when you perform live. MacBook Pro (Retina, 13-inch, Late 2013), OS X Yosemite (10.10), Mainstage 3 Posted on Jun 7, 2017 8:36 AM Reply I have this question too ( 2 ) I have this question too Me too (2) Me too. The internet's leading resource on Apple MainStage. Apple MainStage Keyboard Programming. In this series, take an in-depth look at all the possibilities that MainStage offers, and how to integrate these concepts into your own keyboard setup.
If you're using an external audio interface, MIDI interface, storage system or plug-in not made by Apple, make sure it's compatible with the latest version of MainStage 3. Contact the manufacturer for support. If an update is available, follow the manufacturer's instructions to update the device or software.
3. Check documentation
Check MainStage 3 Help to make sure MainStage is working as expected. You can search help for key terms shown in alerts or error messages.
4. Test using built-in audio
Sometimes an incompatible or malfunctioning external audio interface can cause issues with MainStage. If you're using an external audio interface, try using the built-in audio on your Mac instead of the interface.
To use built-in audio with MainStage:
Unplug your external audio interface from your Mac.
Open MainStage, then choose MainStage > Preferences > Audio.
Choose Built-in Output from the Audio Output pop-up menu.
Choose Built-in Microphone (or Built-in Input, depending on your computer) from the Audio Input pop-up menu.
Test using a concert, set or patch you've had issues with.
If using built-in audio resolves your issue, you may need to update or service your audio interface. Contact the manufacturer for support.
5. Create a new concert
Sometimes concert files can become unusable, causing unexpected behaviour in MainStage.
To create and test a new project:
Open MainStage and choose File > New.
Choose the devices you want to use for audio input and output from the Audio Input and Audio Output pop-up menus in the dialogue.
Click an instrument category on the left, then select the template you want to use.
Click Choose.
Test to see if the issue occurs in the new concert. If the issue doesn't occur in the new concert, the concert you're having issues with may be damaged. You can try to rebuild the concert file.
Rebuild a damaged concert file
When you rebuild a concert, you export the layout, sets and patches from your concert, then import them into a new concert.
Open the concert you're having issues with.
To export your layout, click Layout, click the gear icon at the top of the Layout section, then choose Export Layout from the menu. Choose a location in which to save the layout, then click Export.
To export your sets and patches, click Edit, click in the Patch List, then press Command–A (or choose Edit > Select All) to select all sets and patches in the Patch List. Drag them to the desktop or a folder.
Close the concert.
Create a new concert from any template.
Click Layout, press Command–A (or choose Edit > Select All) to select all elements in the Layout section, then press Delete to remove them.
To import the layout from the original concert, click the gear icon at the top of the Layout section, then choose Import Layout from the menu. Select the layout, then click Import.
Click Edit, select all the sets and patches in the Patch List, then press Delete to remove all the existing patches.
Drag the patches from the original concert into the Patch List. You may need to reorder sets and patches after dragging them into the patch list.
Test the new concert to see if the issue still exists.
6. Try a different user account
Create another user account on your Mac, then try to recreate the issue in the new user account. If the issue doesn't occur in the new user account, settings or files in the original account may be causing the issue.
7. Reset preferences
Resetting MainStage preferences doesn't affect your project files, presets or patches. However, you do lose any custom preference settings you may have made.
Before resetting preferences, choose MainStage > Preferences and note any specific settings you've made. That way, after resetting preferences, you can go back and reapply your custom settings. For information on different preferences, see Preferences overview in MainStage Help.
To reset your MainStage preferences:
Quit MainStage if it's open.
In the Finder, hold the Option key, then choose Go > Library.
Remove the com.apple.mainstage3.plist file from the Preferences folder.
Restart your Mac.
After your Mac has restarted, open MainStage and try to reproduce the issue you were experiencing. If the issue no longer occurs, open MainStage preferences and reapply your custom settings.
8. Reinstall MainStage
If the issue persists, remove and reinstall MainStage. Your existing MainStage concerts won't be deleted, and can be opened after reinstallation.
In the Finder, choose Go > Applications.
Locate MainStage 3 and drag it to the Bin.
Reinstall MainStage from the App Store, or restore it from a backup. When restoring a copy of the MainStage application from a backup, you can either drag it from its storage location to your Applications folder, or you can restore it from a Time Machine backup.
If you're using third-party plug-ins, try any of these recommendations to fix your issue depending on what you're experiencing:
If you can open Logic Pro or MainStage, but you're having issues with your project or concert, try bypassing plug-ins.
If you can't open Logic Pro or MainStage, try removing plug-ins.
If a recently-installed plug-in isn't available in Logic Pro or MainStage, try the following in the order listed until you can find the plug-in:
Bypass Audio Units plug-ins
If you're having an issue in a particular Logic Pro project or MainStage concert that uses third-party plug-ins, bypass each third-party plug-in in the project one-by-one, testing the project after you bypass each plug-in.
Mainstage 3 4 4 64
You can bypass plug-ins several different ways:
Place the pointer over the plug-in slot in a channel strip, then click the Bypass button so the slot dims.
Option-click the plug-in slot so the slot dims.
In the plug-in window, click the Bypass button so the slot dims.
If bypassing a plug-in fixes your issue, check with the manufacturer to see if the plug-in is compatible with your version of macOS, and for possible updates.
Remove Audio Units plug-ins
If you can’t open Logic Pro or MainStage, try manually removing plug-ins.
Find the plug-in file on your Mac.
If you suspect a particular plug-in, locate the file for the plug-in in the folder, then drag the file to the Desktop.
Try to reopen the app.
If you still can't open Logic Pro or MainStage:
Mainstage Output 3-4
Create a new folder on the Desktop.
Move all the plug-in files that appear in their installation locations to the new folder.
Try to open Logic Pro or MainStage.
If you can open the app, replace each plug-in file to its original location one-by-one. Quit and reopen the app after you replace each plug-in file. If you can't open the app after replacing a particular plug-in file, that plug-in might be corrupted or incompatible. Try reinstalling the disabled plug-in or check with the manufacturer for an update.
Restart your Mac
If your Mac is running macOS High Sierra or later and you recently installed a plug-in that isn't available in Logic Pro or MainStage, restart your Mac. Before you restart your Mac, confirm that the plug-in is 64-bit compatible. 32-bit plug-ins aren't compatible with Logic Pro or MainStage.
Choose Apple menu > Restart.
Open Logic Pro or MainStage.
Click an Audio Effect, Instrument, or MIDI Effect slot to see if the plug-in is available in the pop-up menu. If the plug-in still isn't available, rescan the plug-in.
Confirm that the plug-in is installed
If a recently-installed plug-in still isn't available after restarting your Mac, confirm that the plug-in is installed:
Choose Logic Pro X > Preferences > Plug-in Manager, or MainStage 3 > Preferences > Plug-in Manager.
In the Plug-in Manager, locate the plug-in. To filter the list by manufacturer, click the manufacturer's name in the left column.
If the plug-in doesn't appear in the Plug-In Manager, find the plug-in file. If 'not authorized' appears in the Compatibility column for the plug-in, make sure the plug-in is properly authorized as documented by the manufacturer.
Reinstall the plug-in, then restart the computer.
If the plug-in still isn't available, check with the manufacturer to see if the plug-in is compatible with your version of macOS, and for possible updates.
Rescan a plug-in
If the recently-installed plug-in is installed, use the Plug-in Manager to rescan the plug-in.
Choose Logic Pro X > Preferences > Plug-In Manager, or MainStage 3 > Preferences > Plug-In Manager.
In the plug-in Manager, locate the plug-in you want to check. To filter by manufacturer, click manufacturer's name in the left column.
If 'failed validation' appears in the Compatibility column for the plug-in, select the plug-in in the list, then click Reset & Rescan Selection. If 'not authorized' appears in the Compatibility column for the plug-in, make sure the plug-in is properly authorized as documented by the manufacturer. Then rescan the plug-in.
If the plug-in fails validation again, check with the manufacturer to see if the plug-in is compatible with your version of macOS, and for possible updates.
Rescan all plug-ins
To automatically rescan all installed plug-ins, remove the Audio Unit cache file.
In the Finder, press Option and choose Go > Library.
In the Finder window, go to Library/Caches/AudioUnitCache.
Move the files from AudioUnitCache folder to the Desktop.
Restart the computer, then open Logic Pro X or MainStage. All installed Audio Units plug-ins will be rescanned.