System Workbench for STM32

Same problem for me (Ubuntu 64bits).
Here is the end of execution trace when launching sw4wtm32 from the console:
__IoConfig Change Database Path : /home/bdufay/STM32/SystemWorkBench/plugins/com.st.microxplorer.rcp_4.14.0.201603171736//db/
IoConfig Change Database Version : DB.4.0.140
setPackage(No Configuration,No Configuration)
xcb Unknown sequence number while processing queue
xcb Most likely this is a multi-threaded client and XInitThreads has not been called
xcb Aborting, sorry about that.
java: ../../src/xcb_io.c :274 : poll_for_event: l'assertion « !xcb_xlib_threads_sequence_lost » a échoué.__

Thank you for fixing this if possible.

Regards,

BDufay