Brand new install. When I add the stock “Ace Delay” plugin to a track in “Mixer Mode”, it will display the “Ace Delay” window, but then Ardour will crash. Real hard, back to the desktop.
Most plugins will crash like that.
Adding the “Ace Reverb” to my track works just fine.
Try disabling Preferences > Plugins > Automatically open the plugin GUI when adding a new plugin.
and perhaps right-click > Edit with generic controls…
The plugin GUI uses openGL (graphics acceleration) and that causes issues on some systems, notably Windows systems with outdated graphics card drivers. Those are usually resolved by updating the graphics card driver.
–
PS. Alternatively you can re-install Ardour and opt-out of installing the 3rd party
“Harrison XT plugins and a-/ACE plugin GUIs”
PPS. Ideally you reboot Windows first before reinstalling Ardour after a crash.