During (unofficial) Linux native porting the GUI is not able to load due to unspecified AJS dependency and general failure in "Loading GUI" phase. Seems Linux jxbrowser component is more picky than Windows one.
Internally communicated by mail. Ticket is a formal tracker.
Reason is AJS module definitions which need to be fixed/improved. Most of plugins have correct definition while others do not. Each SQX build fails on a different plugin depending on load order.
SQX128: /plugins/SettingsWaitFor/module.js (EXAMPLE)
Note many plugins need to be reviewed to have correct module definition. Should not be time consuming fix.