Last time I read the scroll perfectly in bgt 1.12; on another forum I see the same problem was mentioned with a BWP 11.1 install. So I guess it's a problem with 1.15?
I install my bgt over Atari's Dungeons & Dragons Anthology: The Master Collection and here's the weidu.log:
// Log of Currently Installed WeiDU Mods
// The top of the file is the 'oldest' mod
// ~TP2_File~ #language_number #component_number // [Subcomponent Name -> ] Component Name [ : Version]
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #0 // BG2 Fixpack - Core Fixes: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #1000 // BG2 Fixpack - Game Text Update -> GTU Light (by Wisp): v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #3 // BETA Core Fixes (please check the readme!): v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #100 // Party Gets XP for Sending Keldorn to Reconcile With Maria: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #101 // Improved Spell Animations: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #102 // Cromwell's Forging Actually Takes a Day: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #103 // Mixed-Use Dagger Fixes: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #104 // Ghreyfain's Holy Symbol Fixes: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #106 // Giants Receive Penalties When Attacking Halflings, Dwarves, and Gnomes: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #107 // Remove Dual-Classing Restriction from Archers and Stalkers: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #108 // Remove Second Attribute Bonus for Evil Path in Wrath Hell Trial: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #109 // Corrected Summoned Demon Behavior: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #110 // Additional Script Fixes: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #111 // Bard Song Fixes: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #112 // Wizard Slayers Cause Miscast Magic on Ranged Attacks: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #113 // Additional Alignment Fixes: v9.01
~BG2FIXPACK/SETUP-BG2FIXPACK.TP2~ #0 #114 // Change Free Action to Protect Against Stun: v9.01
~SETUP-BGT.TP2~ #0 #0 // Baldur's Gate Trilogy - Core: 1.15 (11 Jun 12)
~TXTMUSIC/TXTMUSIC.TP2~ #0 #0 // Restored Textscreen Music for BG1TuTu, EasyTutu, and BGT-WeiDU: 8 (10 Jan 12)
~SETUP-SIRINESCALL.TP2~ #0 #0 // The Lure of the Sirine's Call: v11
~SETUP-LOSTITEMS.TP2~ #0 #0 // Lost Items
~BG1NPC.TP2~ #0 #0 // The BG1 NPC Project: Required Modifications: v20
~BG1NPC.TP2~ #0 #1 // The BG1 NPC Project: Banters, Quests, and Interjections: v20
~BG1NPC.TP2~ #0 #8 // The BG1 NPC Project: Add Non-Joinable NPC portraits to quests and dialogues: v20
~BG1NPC.TP2~ #0 #17 // The BG1 NPC Project: Alora's Starting Location -> Alora Starts in the Hall of Wonders: v20
~BG1NPC.TP2~ #0 #25 // Jason Compton's Accelerated Banter Script: v20
~BG1NPC.TP2~ #0 #27 // The BG1 NPC Project: Bardic Reputation Adjustment: v20
~BG1NPC.TP2~ #0 #30 // The BG1 NPC Project: Sarevok's Diary Adjustments -> SixofSpades Extended Sarevok's Diary: v20
~BG1NPC.TP2~ #0 #200 // The BG1 NPC Project: Player-Initiated Dialogues: v20
~GAVIN/GAVIN.TP2~ #0 #0 // Gavin NPC for Tutu and BGT, 14April2008: v8
~GAVIN/GAVIN.TP2~ #0 #10 // Gavin: Player Initiated Dialogue: v8
~BG1UB/SETUP-BG1UB.TP2~ #0 #0 // Ice Island Level Two Restoration: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #1 // The Mysterious Vial: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #2 // Additional Elminster Encounter: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #8 // Safana the Flirt: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #10 // Place Entar Silvershield in His Home: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #11 // Scar and the Sashenstar's Daughter: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #12 // Quoningar, the Cleric: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #13 // Shilo Chen and the Ogre-Magi: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #14 // Edie, the Merchant League Applicant: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #15 // Flaming Fist Mercenary Reinforcements: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #16 // Creature Corrections: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #17 // Creature Restorations: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #18 // Creature Name Restorations: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #19 // Minor Dialogue Restorations: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #20 // Audio Restorations: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #21 // Store, Tavern and Inn Fixes and Restorations: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #22 // Item Corrections and Restorations: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #23 // Area Corrections and Restorations: v13_120121
~BG1UB/SETUP-BG1UB.TP2~ #0 #24 // Permanent Corpses: v13_120121
~TOD/SETUP-TOD.TP2~ #0 #0 // Tower Of Deception Mod (Requires Throne Of Bhaal)
~SETUP-ITEMUPGRADE.TP2~ #0 #10 // Shadows Of Amn Item Upgrades -> Revised consistency plus version: v39
~SETUP-ITEMUPGRADE.TP2~ #0 #11 // Throne Of Bhaal Item Upgrades -> Revised consistency plus version: v39
~CLIFFKEY/SETUP-CLIFFKEY.TP2~ #0 #1 // A Mod for the Orderly - Add a Keyring to Faerun! See readme for more details about the choices below. -> Consistency Plus version: v5
~SETUP-CWS.TP2~ #0 #0 // Cloakwood Squares -- The Mod: v4
~JZ/SETUP-JZ.TP2~ #0 #0 // The Jerry Zinger Show
~JZ/SETUP-JZ.TP2~ #0 #1 // Remove Delay Between Episodes
~SETUP-BANTERPACK.TP2~ #0 #0 // Pocket Plane Banter Pack for BG2: Shadows of Amn
~SETUP-BANTERPACK.TP2~ #0 #2 // Pocket Plane Banter Pack for BG2: Throne of Bhaal
~SETUP-BANTERPACK.TP2~ #0 #3 // Install TOB Banter Accelerator script? (Increases the frequency of interparty banter)
~SETUP-EDWINROMANCE.TP2~ #0 #0 // Edwin Romance: v2 - beta 1
~SETUP-AIP.TP2~ #0 #0 // Adventures In Papperland: v5
~SETUP-UB.TP2~ #0 #0 // The Kidnapping of Boo by Cliffette: v19
~SETUP-UB.TP2~ #0 #2 // Kalah and What He Was Promised: v19
~SETUP-UB.TP2~ #0 #5 // The Pai'Na/Spider's Bane Quest: v19
~SETUP-UB.TP2~ #0 #6 // Restored Crooked Crane Inn: v19
~SETUP-UB.TP2~ #0 #7 // Restored Encounters: v19
~SETUP-UB.TP2~ #0 #8 // Artemis Entreri in Bodhi's Lair: v19
~SETUP-UB.TP2~ #0 #9 // Corrected "Xzar's Creations": v19
~SETUP-UB.TP2~ #0 #10 // Restored Hell Minions, by SimDing0: v19
~SETUP-UB.TP2~ #0 #12 // Item Restorations: v19
~SETUP-UB.TP2~ #0 #15 // NPC Portrait Restorations: v19
~SETUP-UB.TP2~ #0 #16 // Corrected BAMs and Scripts: v19
~SETUP-UB.TP2~ #0 #17 // Corrected Character Names and Biographies: v19
~SETUP-UB.TP2~ #0 #18 // Restored Minor Dialogs: v19
~SETUP-UB.TP2~ #0 #19 // Restored Bhaalspawn Powers, by David Gaider: v19
~SETUP-UB.TP2~ #0 #21 // Throne of Bhaal Minor Restorations: v19
~SETUP-BPV180.TP2~ #0 #15 // Ascension for BP: v180 c
~SETUP-LONGERROAD.TP2~ #0 #0 // Longer Road v 1.5
~KELSEY.TP2~ #0 #0 // Kelsey v2.1: for BG2 - SoA
~SETUP-KELSEYTOB.TP2~ #0 #0 // Kelsey: ToB - Version 2
~SETUP-KELSEYTOB.TP2~ #0 #3 // Install Default Kelsey portrait set by Wynne Lurty? (set 1 of 3)
~SETUP-BGTTWEAK.TP2~ #0 #100 // Eldoth reminds of Skie's ransom: 10 (8 Jan 12)
~SETUP-BGTTWEAK.TP2~ #0 #400 // Add Semaj's Cloak and Upgraded Koveras' Ring of Protection: 10 (8 Jan 12)
~SETUP-BGTTWEAK.TP2~ #0 #1000 // Bags of the Sword Coast: 10 (8 Jan 12)
~SETUP-BGTTWEAK.TP2~ #0 #1200 // Arkion reacts to player's reputation: 10 (8 Jan 12)
~SETUP-BGTTWEAK.TP2~ #0 #1900 // Restore BG2 XP bonus for traps, locks, and scrolls: 10 (8 Jan 12)
~SETUP-BGTTWEAK.TP2~ #0 #2002 // Protagonist's biography modifications -> Set BG2 biography upon Shadows of Amn transition: 10 (8 Jan 12)
~SETUP-BGTTWEAK.TP2~ #0 #2100 // Exotic Weapons For Taerom: 10 (8 Jan 12)
~SETUP-BGTTWEAK.TP2~ #0 #2800 // Reputation Resets at Beginning of BG2: 10 (8 Jan 12)
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #1010 // More Interjections: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #1020 // Alter HP Triggers for NPC Wounded Dialogues: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #1090 // Exotic Item Pack: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #1120 // Stores Sell Higher Stacks of Items: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #1170 // Bonus Merchants (Baldurdash): v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #1180 // Female Edwina: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3000 // Higher HP on Level Up -> Maximum: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3012 // Maximum HP for NPCs (the bigg) -> For Party-Joinable NPCs Only: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3031 // Easy Spell Learning -> 100% Learn Spells and No Maximum Cap: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3050 // Remove fatigue from restoration spells: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3060 // Remove "You Must Gather Your Party..." Sound (Weimer): v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3080 // Unlimited Ammo Stacking: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3090 // Unlimited Gem and Jewelry Stacking: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3100 // Unlimited Potion Stacking: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3110 // Unlimited Scroll Stacking: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #3125 // Neutral Characters Make Happy Comments at Mid-Range Reputation: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #4031 // Consistent Stats: Edwin -> Use BG2 Values: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #4041 // Consistent Stats: Jaheira -> Use BG2 Values: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #4050 // Change Jaheira to Neutral Good: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #4061 // Consistent Stats: Minsc -> Use BG2 Values: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #4071 // Consistent Stats: Viconia -> Use BG2 Values: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #4100 // Change Korgan to Neutral Evil: v9
~BG2_TWEAKS/SETUP-BG2_TWEAKS.TP2~ #0 #4110 // Give Kagain A Legal Constitution Score of 19: v9
~FREEACT/SETUP-FREEACT.TP2~ #0 #10 // PnP Free Action: v2
~LEVEL1NPCS/LEVEL1NPCS.TP2~ #0 #0 // Nythrun's Level 1 NPCs: List party-joinable NPCs (required to install any NPC components): v1.9
~LEVEL1NPCS/LEVEL1NPCS.TP2~ #0 #4 // Joinable NPCs more closely match the player character's experience -> On initial joining and rejoining: v1.9
~LEVEL1NPCS/LEVEL1NPCS.TP2~ #0 #55 // Dudleyfix for BG1 NPCs: v1.9
~LEVEL1NPCS/LEVEL1NPCS.TP2~ #0 #60 // Fix BG1 NPC spells and innate abilities: v1.9
~LEVEL1NPCS/LEVEL1NPCS.TP2~ #0 #100 // Update game references to NPC classes/kits: v1.9
~SETUP-BP-BGT-WORLDMAP.TP2~ #0 #0 // Worldmap for Baldur's Gate - including colored Baldur's Gate map icons: v9.0.1
~SETUP-BP-BGT-WORLDMAP.TP2~ #0 #1 // Worldmap for Throne of Bhaal -> Use new Worldmap for Throne of Bhaal as well: v9.0.1
~MAPNAMES/SETUP-MAPNAMES.TP2~ #0 #0 // Sword Coast Map Labels: v2
~MAPNAMES/SETUP-MAPNAMES.TP2~ #0 #25 // Update Map Markers: v2
~SETUP-BGTMUSIC.TP2~ #0 #1 // Baldur's Gate Trilogy - Music -> Hybrid Baldur's Gate/Shadows of Amn/Throne of Bhaal Music
~WIDESCREEN/WIDESCREEN.TP2~ #0 #0 // Widescreen Mod -> for the original Infinity Engine (CHOOSE THIS!): Widescreen Mod v3.02
// Recently Uninstalled: ~GENERALIZED_BIFFING/GENERALIZED_BIFFING.TP2~ #0 #0 // Generalized Biffing: v2.2
~GENERALIZED_BIFFING/GENERALIZED_BIFFING.TP2~ #0 #0 // Generalized Biffing: v2.2
~CREFIXER/SETUP-CREFIXER.TP2~ #0 #0 // Creature Slot Fixer: v2
~SETUP-INNATE_FIX.TP2~ #0 #0 // Innates Set to Level One
Thank you!