Regression

trial-ttcn3_bts_tests:trx.ttcn3_bts_tests.TC_si_sched_13 (from Titan)

Failing for the past 1 build (Since #2756 )

"BTS_Tests.ttcn:3940 : No SI messages for TC=0"
      BTS_Tests.ttcn:7245 BTS_Tests control part
      BTS_Tests.ttcn:4241 TC_si_sched_13 testcase