Bob,
In the IMG there is a node titled "Assign access levels to tabs" under Incident Management->General Configuration. There should be an entry in this configuration for EHHSS_INC_REC_OIF_V3_ACTEN_MD (against EHHSS_B_TASKS_N_TIME). The behaviour you have found is consistent with this configuration being missing.
Please check that the entry exists.
Regards,
Michael