RSearch initialization fails

Second day in a row I see the same problem:

l_hr = m_RSearchMgr->Initialize(RSearchLib::RS_CT_EIKON, l_EmptyVar, &m_RSearchMgrCookie);

l_hr == S_OK check fails. What could be a reason of that function call failure? (It returns E_FAIL)

Update: This happens everywhere

1. on the built before New Year exe program.

2. In debug mode

3. on RSearchCppEikonnect - official sample program.

4. It happens on 2 different machines. Both have Eikon 4.0.46.