Doing "Project/Open File" causes a crash on x86_64 with this backtrace:
#0 0x00000000407541e3 in create_projects (ins_after=0x40659038, args=0x0, nb=0) at /home/mazze/projects/aros-src/workbench/tools/Edit/Project.c:344
#1 0x0000000040753707 in load_and_activate (ins=0x40659038, name=0x4065d304 "\001", use_prj=2 '\002') at /home/mazze/projects/aros-src/workbench/tools/Edit/Project.c:107
#2 0x000000004074bc68 in handle_menu (MenuID=102) at /home/mazze/projects/aros-src/workbench/tools/Edit/Events.c:294
#3 0x000000004074ed8f in dispatch_events () at /home/mazze/projects/aros-src/workbench/tools/Edit/Jed.c:245
#4 0x000000004074e710 in main (argc=0, argv=0x400abba0) at /home/mazze/projects/aros-src/workbench/tools/Edit/Jed.c:103
Crash happens in CurrentDir(arg->wa_Lock);
because arg is NULL.
"Project/Load File" and loading from the command line works.
Problem still exists (2016-02-22)
Can't reproduce it anymore.