There is an issue where 1.8.11 seems to be setting some UI elements in a background thread. This is new to me, I recently updated the IDE to the latest version. Attached is the crash log. It happens soon after I launch the Tool ESP Exception Decoder [ArduinioCrashMac.txt](https://github.com/arduino/Arduino/files/4188674/ArduinioCrashMac.txt)
Activity
cmaglie commentedon Feb 12, 2020
This looks like a Java JRE problem that has been fixed very recently: https://bugs.openjdk.java.net/browse/JDK-8146238
We must check if the latest build from AdoptJDK has the fix.