Roundtrip latency is the total amount of input monitoring latency you'll experience from audio input to audio output. Logic Pro shows the resulting latency under the I/O Buffer Size menu. Choose the buffer size from the I/O Buffer Size pop-up menu.Choose Logic Pro > Preferences, then click Audio.

The cause of the crash was found and fixed based on crash report submissions by users.

Here's how to change the I/O buffer size: Fixed an intermittent crash when scanning for Ethernet Control Surfaces on Windows (PT-279212) Fixed a crash that may occur when creating a new project (PT-279011) Fixed an issue that would cause the video engine to crash in certain situations. Projects with many tracks or a lot of software instruments require higher I/O buffer sizes, depending on the amount or RAM and the speed of the processor in your Mac. If you encounter system overload alerts, increase the I/O buffer size to the next setting. When recording, set the I/O buffer to the lowest setting. However, smaller buffer sizes require more processing power, which can cause system overload alerts. Larger I/O buffer sizes require less processing power, but increase latency. In Logic Pro, smaller I/O buffer sizes reduce input monitoring latency. The I/O buffers temporarily store some of the incoming and outgoing audio data to protect against audible dropouts, clicks, or pops. You can change the I/O buffer size at any time to minimize latency.

Turn down latency in logic x pro