When spark message comes work is interrupted

Upgraded to version 2.6.3 and when a spark message is sent; whatever you are working on halts until you click back to the work area. How can you avoid work for being interrupted when you get a spark message? Thanks

This is a Java bug, which is fixed in Java 7 version. Spark 2.7.0 will have Java 7 bundled, so this issue will be fixed. Can’t say when 2.7.0 will be released, it is in the preparation phase, upgrading build software to support Java 7. Maybe this month.