For all those who have the problem under Win10, the Manticore breaks off as soon as the Arduinos are addressed, try OpenJDK 8
I bought an AcePC AK1 to control Inmoov with a pre-installed WIN10 Pro.
After installing the required Java version from Oracle, MRL broke off every time the Arduinos were addressed.
After a long back and forth I installed OpenJDK 8 and since then MRL Manticore has been running without problems.