I installed Questpack as part of a megamod installation and then went through the debug. That's what I found:
Installing [Nazariel The Lich]
Checking for forbidden files ...
Copying and patching 21 files ...
Copying and patching 5 files ...
Copying and patching 5 files ...
Copying and patching 1 file ...
Appending to files ...
Appending to files ...
Appending to files ...
Copying and patching 1 file ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Appending to files ...
Copying and patching 5 files ...
Copying and patching 5 files ...
[action list near line 5641, column 2 of jaheiraj.dlg] PARSE WARNING at line 5646 column 1-39
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 5675, column 2 of jaheiraj.dlg] PARSE WARNING at line 5680 column 1-39
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 5717, column 2 of jaheiraj.dlg] PARSE WARNING at line 5722 column 1-39
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 5751, column 2 of jaheiraj.dlg] PARSE WARNING at line 5756 column 1-39
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10478, column 2 of jaheiraj.dlg] PARSE WARNING at line 10479 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10490, column 2 of jaheiraj.dlg] PARSE WARNING at line 10491 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10502, column 2 of jaheiraj.dlg] PARSE WARNING at line 10503 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10514, column 2 of jaheiraj.dlg] PARSE WARNING at line 10515 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10526, column 2 of jaheiraj.dlg] PARSE WARNING at line 10527 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10538, column 2 of jaheiraj.dlg] PARSE WARNING at line 10539 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10550, column 2 of jaheiraj.dlg] PARSE WARNING at line 10551 column 1-20
Near Text: )
[Shout] argument [ESCAPE_AREA_2] not found in [SHOUTIDS.IDS]
[action list near line 10562, column 2 of jaheiraj.dlg] PARSE WARNING at line 10563 column 1-20
Near Text: )
[Shout] argument [ESCAPE_AREA_2] not found in [SHOUTIDS.IDS]
[action list near line 10574, column 2 of jaheiraj.dlg] PARSE WARNING at line 10575 column 1-20
Near Text: )
[Shout] argument [ESCAPE_AREA_2] not found in [SHOUTIDS.IDS]
[action list near line 10586, column 2 of jaheiraj.dlg] PARSE WARNING at line 10587 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10598, column 2 of jaheiraj.dlg] PARSE WARNING at line 10599 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10610, column 2 of jaheiraj.dlg] PARSE WARNING at line 10611 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10622, column 2 of jaheiraj.dlg] PARSE WARNING at line 10623 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10634, column 2 of jaheiraj.dlg] PARSE WARNING at line 10635 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10646, column 2 of jaheiraj.dlg] PARSE WARNING at line 10647 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10658, column 2 of jaheiraj.dlg] PARSE WARNING at line 10659 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10670, column 2 of jaheiraj.dlg] PARSE WARNING at line 10671 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10682, column 2 of jaheiraj.dlg] PARSE WARNING at line 10683 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10694, column 2 of jaheiraj.dlg] PARSE WARNING at line 10695 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10706, column 2 of jaheiraj.dlg] PARSE WARNING at line 10707 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 10718, column 2 of jaheiraj.dlg] PARSE WARNING at line 10719 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
[action list near line 2121, column 2 of viconij.dlg] PARSE WARNING at line 2127 column 1-19
Near Text: )
[Shout] argument [INCOMING_111] not found in [SHOUTIDS.IDS]
[action list near line 3913, column 2 of viconij.dlg] PARSE WARNING at line 3914 column 1-14
Near Text: )
[Shout] argument [ATTACK1] not found in [SHOUTIDS.IDS]
Compiling 1 dialogue file ...
Copying 1 file ...
Extending game scripts ...
Copying and patching 1 file ...
Copying and patching 2 files ...
Compiling 4 scripts ...
Copying and patching 1 file ...
Appending to files ...
Copying and patching 1 file ...
Copying 1 file ...
I am not quite sure what happened. I also got this problem with Ninde and Xulaye NPCs before.
I can provide my weidu.log if this is a problem not yet known.