Logic Pro intermittently registers mouse-down but not mouse-up for input

I’m experiencing an intermittent mouse/trackpad input issue in Logic Pro Creator Studio and the normal version, 12.3.1 on macOS 27.0.

While dragging audio/MIDI regions, tracks, or opening areas such as the Mixer, Logic occasionally appears to register the mouse-down but then hangs briefly and does not properly register the mouse-up. The result is that a normal click behaves like a held click or a drag, until I click again.

What I have ruled out:

• Happens in a brand-new empty project.
• Happens with both the built-in MacBook trackpad and a Logitech G Pro mouse.
• Other apps remain responsive; this is Logic-specific.
• Resetting Logic settings did not resolve it.
• No particular plug-in/project appears involved.

I captured a sample during the issue. Logic’s main thread was inside the AppKit mouse-down event path:

NSApplication _handleEvent → NSWindow _handleLeftMouseDownEvent → Logic internal code

The sample then repeatedly showed Logic’s private framework waiting in an event-tracking loop, including NSEventTrackingRunLoopMode and short usleep calls. This seems consistent with Logic entering a drag-tracking state but failing to exit promptly when the click is released.

Has anyone else seen this in Logic Pro? If so, are there any workarounds besides restarting Logic?