Description

When there is an error and a message logged to the console alternating it seems to make the IDE unresponsive.

Expected Behavior

Current Behavior

Steps to Reproduce

This code will cause the error to happen:

for (int i=0; i < 1000000; i++) {
    System.err.println("ERROR");
    println("out");
}

Your Environment

• Processing version: 3.4
• Operating System and OS version: MacOS High Sierra
• Other information: