[NIOS2 SBT, Ubuntu 16.04] version 18.0 segmentation Faults at launch, while 17.0 is OK.

Hi, I installed Quartus Lite 18.0 successfully on Ubuntu 16.04, and can use Quartus just fine. But when I try to launch the NIOS2 Eclipse IDE from the "nios2_command_shell", I get a Segmentation Fau...