The temple quest "A Troublesome Orc" consists of several journal entries, mainly:

TR_m4_TT_TroublesomeOrc
TR_m4_TT_TroublesomeOrc_b
TR_m4_TT_TroublesomeOrc_c

However, there is also TR_m4_TT_ArmunAdventure_e, but the name of the quest is different, just "Troublesome Orc" without "A". Therefore, it doesn't get hidden from the journal when the quest is finished after inviting him to join the temple.