Segmentation fault when time profiling iTasks programs (Linux x64)

When time profiling the following simple iTasks program I get a segfault:

test.icl

test.prj

The stack trace:

Program received signal SIGSEGV, Segmentation fault.
0x0000000000b5f014 in e__iTasks_PEngine__n__f0_PtoStartable_I9_PonStartup_PiTask_I_PgText__s_I_PJSONEncode__s_I_P610 ()
(gdb) bt
#0  0x0000000000b5f014 in e__iTasks_PEngine__n__f0_PtoStartable_I9_PonStartup_PiTask_I_PgText__s_I_PJSONEncode__s_I_P610 ()
#1  0x0000000000b66d28 in e__iTasks_PEngine__eadoTasksWithOptions ()
#2  0x0000000000417a2f in __print__graph ()
#3  0x0000000000000000 in ?? ()