quest 'In Dreams" can't complete

Noticed on our implementation that taelan has no spells defined. which leads him to stand there and die to his guards. After adding the spells his ai began working. Rel20

Found the following problems doing the quest

Taelon Fordring, npc entry 1842

• Mangos console errors during escort:
  • doScriptText source creature: 1842  , text entry not found=> -1001078
  • doScriptText source creature: 1842  , text entry not found=> -1001079
  • doScriptText source creature: 1842  , text entry not found=> -1001080
  • target for action_t_cast creature: 4494 , casting spell ?20822
  • EscortAI start with 0 waypoints ( missing entry in script_waypoint)
  • doScriptText source creature: 1840  , text entry not found=> -1001081
  • doScriptText source creature: 1840  , text entry not found => -1001082
  • doScriptText source creature: 1842  , text entry not found => -1001083
  • doScriptText source creature: 1842  , text entry not found => -1001084
  • doScriptText source creature: 1840  , text entry not found => -1001085
  • doScriptText source creature: 1840  , text entry not found => -1001086
  • doScriptText source creature: 1840  , text entry not found => -1001087
  • doScriptText source creature: 1840  , text entry not found => -1001088
  • doScriptText source creature: 1840  , text entry not found => -1001089
  • id 11625197, command 10, buddy 11626 not found in range 40 of searcher creature 11625
  • id 11625197, command 29, buddy 11626 not found in range 40 of searcher creature 11625

After killing the named guy in the tower Taelon just stand there idle, .npc aiinfo on him shows the follow

ScriptName: npc_taelan_fordring
EscortAI started for player Vian started with quest 5944
EscortFlags: Escorting, Paused