What steps will reproduce the problem?
1. Having a battle net conversation chat open and with whispers incoming.
2. Logging with a character (have window open in loading screen)
3. An error will pop up for chat about something with editbox/polish bnet alt names module

What is the expected output? What do you see instead?
chat window becomes bugged (can't see anything written in party/raid, just whispers working.

What version of the product are you using?
1.4.9 latest version

Do you have an error log of what happened?

Date: 2016-05-09 14:47:00
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\Chatter\Modules\EditBox.lua line 559:
   attempt to index field 'lDrag' (a nil value)
Debug:
   Chatter\Modules\EditBox.lua:559 SetAttach()
   Chatter\Modules\EditBox.lua:329
      Chatter\Modules\EditBox.lua:314
   (tail call): ?
   [C]: ?
   [string "safecall Dispatcher[1]"]:9:
      [string "safecall Dispatcher[1]"]:5
   (tail call): ?
   ...ce\AddOns\AdiBags\libs\AceAddon-3.0\AceAddon-3.0.lua:558
      ...ce\AddOns\AdiBags\libs\AceAddon-3.0\AceAddon-3.0.lua:551
   (tail call): ?
   Chatter\Chatter.lua:249
      Chatter\Chatter.lua:242
   (tail call): ?
   [C]: ?
   [string "safecall Dispatcher[1]"]:9:
      [string "safecall Dispatcher[1]"]:5
   (tail call): ?
   ...ce\AddOns\AdiBags\libs\AceAddon-3.0\AceAddon-3.0.lua:558 EnableAddon()
   ...ce\AddOns\AdiBags\libs\AceAddon-3.0\AceAddon-3.0.lua:651
      ...ce\AddOns\AdiBags\libs\AceAddon-3.0\AceAddon-3.0.lua:636
   [C]: LoadAddOn()
   ..\FrameXML\UIParent.lua:343 UIParentLoadAddOn()
   ..\FrameXML\UIParent.lua:366 CombatLog_LoadUI()
   ..\FrameXML\UIParent.lua:925
      ..\FrameXML\UIParent.lua:825
Locals:
None
AddOns:
  Swatter, v5.21f.5579 (SanctimoniousSwamprat)
  ACP, v3.4.24
  AdiBags, vv1.8.4
  Altoholic, vr165
  AucAdvanced, v5.21f.5579 (SanctimoniousSwamprat)
  AucFilterBasic, v5.21f.5579 (SanctimoniousSwamprat)
  AucFilterOutlier, v5.21f.5579.5459(5.21f/embedded)
  AucMatchUndercut, v5.21f.5579.5507(5.21f/embedded)
  AucStatHistogram, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatiLevel, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatPurchased, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatSales, v5.21f.5579.5476(5.21f/embedded)
  AucStatSimple, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatStdDev, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatWOWEcon, v5.21f.5579.5323(5.21f/embedded)
  AucUtilAHWindowControl, v5.21f.5579.5575(5.21f/embedded)
  AucUtilAppraiser, v5.21f.5579.5545(5.21f/embedded)
  AucUtilAskPrice, v5.21f.5579.5447(5.21f/embedded)
  AucUtilAutoMagic, v5.21f.5579.5537(5.21f/embedded)
  AucUtilCompactUI, v5.21f.5579.5550(5.21f/embedded)
  AucUtilEasyBuyout, v5.21f.5579.5576(5.21f/embedded)
  AucUtilFixAH, v5.21f.5579 (SanctimoniousSwamprat)
  AucUtilItemSuggest, v5.21f.5579.5417(5.21f/embedded)
  AucUtilPriceLevel, v5.21f.5579.5535(5.21f/embedded)
  AucUtilScanButton, v5.21f.5579.5403(5.21f/embedded)
  AucUtilScanFinish, v5.21f.5579.5515(5.21f/embedded)
  AucUtilScanProgress, v5.21f.5579.4979(5.21f/embedded)
  AucUtilScanStart, v5.21f.5579.5347(5.21f/embedded)
  AucUtilSearchUI, v5.21f.5579.5556(5.21f/embedded)
  AucUtilSimpleAuction, v5.21f.5579.5531(5.21f/embedded)
  AucUtilVendMarkup, v5.21f.5579.4828(5.21f/embedded)
  Auctionator, v3.2.6
  Auditor2, v5.0.4
  Babylonian, v5.1.DEV.332(/embedded)
  BattlePetBreedID, vv1.5.0
  BeanCounter, v5.21f.5579 (SanctimoniousSwamprat)
  Blitz, v5.9
  BrokerAuditor, v5.0.4
  Chatter, v1.4.9
  Clique, vv60200-1.0.0
  Collectinator, v6.2.3.2
  Configator, v5.1.DEV.396(/embedded)
  DataStore, vr55
  DataStoreAchievements, vr41
  DataStoreAgenda, vr22
  DataStoreAuctions, v6.0.001
  DataStoreCharacters, vr35
  DataStoreContainers, vr51
  DataStoreCrafts, vr68
  DataStoreCurrencies, vr30
  DataStoreGarrisons, vr14
  DataStoreInventory, vr43
  DataStoreMails, vr43
  DataStorePets, vr38
  DataStoreQuests, vr35
  DataStoreReputations, vr36
  DataStoreSpells, vr26
  DataStoreStats, vr25
  DataStoreTalents, vr51
  DBMCore, v
  DBMStatusBarTimers, v
  DebugLib, v5.1.DEV.337(/embedded)
  Dominos, v6.2.8
  DominosActionSets, v
  DominosCast, v
  DominosEncounter, v
  DominosQuest, v5.3.1
  DominosRoll, v
  DominosXP, v
  Enchantrix, v5.21f.5579 (SanctimoniousSwamprat)
  EnchantrixBarker, v5.21f.5579 (SanctimoniousSwamprat)
  GatherMate2, v1.35.6
  GoingPriceUS, v6.2.1461628800
  GoingPriceUSIllidan, v6.2.1461765031
  GoingPriceUSQuelthalas, v6.2.1461771751
  HandyNotes, vv1.4.6
  HandyNotesAzerothsTopTunes, vv1.2
  HandyNotesDraenorTreasures, v1.16a
  HandyNotesHigherLearning, v6.2.0.4
  HandyNotesLostAndFound, v1
  HandyNotesMailboxes, v1
  HandyNotesTreasureHunter, v1
  HandyNotesWellRead, v6.1.0.4
  idTip, v6.2.1
  KuiNameplates, v260
  KuiNameplatesAuras, v
  KuiSpellListConfig, v
  LibExtraTip, v5.12.DEV.395(/embedded)
  LibItemUpgradeInfo10, vRelease-60203-18 6.2.2
  LibPeriodicTable31, vv3.3.0.507
  LibPetBreedInfo10, v
  LibSharedMedia30, v3.0-93
  MasterPlanA, vA
  MogIt, v3.5.9
  MogItAccessories, v
  Multishot, v3.1.4
  PokemonTrainer, v6.1.1
  Postal, vv3.5.6
  Quartz, v3.2.7
  Rarity, v1.0
  RarityOptions, v
  Rematch, v4.3.6
  SavedInstances, v6.2.8
  SentMail, v
  ServerHop, v1.19a
  SexyMap, v2.4.26
  Skada, v1.4-33
  SkadaScroll, v1.5.2
  SlideBar, v5.21f.5579 (SanctimoniousSwamprat)
  Stubby, v5.21f.5579 (SanctimoniousSwamprat)
  TheUndermineJournal, v4.1.20160507
  TipHelper, v5.12.DEV.389(/embedded)
  TipTac, v15.12.07
  TipTacItemRef, v15.12.07
  TipTacTalents, v15.07.02
  TomTom, vv60200-2.1.0
  TomTomPing, v1.3 r037
  XLoot, v6.2-13
  XLootFrame, v6.2-13
  XLootGroup, v6.2-13
  XLootMaster, v6.2-13
  XLootMonitor, v6.2-13
  BlizRuntimeLib_enUS v6.2.4.60200 <none>
  (ck=f94)

Please provide any additional information below.

I also got this error doing the same procedure:

Date: 2016-05-09 14:47:11
ID: 4
Error occured in: Stubby
Count: 12
Message: Error: Original call failed after running hooks for:  ChatFrame_OnEvent
 ..\AddOns\Chatter\Modules\AltNames.lua line 329:
   attempt to index upvalue 'GUILDNOTES' (a nil value)
Debug:
   (tail call): ?
   [string "*:OnEvent"]:1:
      [string "*:OnEvent"]:1
Locals:
None
AddOns:
  Swatter, v5.21f.5579 (SanctimoniousSwamprat)
  ACP, v3.4.24
  AdiBags, vv1.8.4
  Altoholic, vr165
  AucAdvanced, v5.21f.5579 (SanctimoniousSwamprat)
  AucFilterBasic, v5.21f.5579 (SanctimoniousSwamprat)
  AucFilterOutlier, v5.21f.5579.5459(5.21f/embedded)
  AucMatchUndercut, v5.21f.5579.5507(5.21f/embedded)
  AucStatHistogram, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatiLevel, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatPurchased, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatSales, v5.21f.5579.5476(5.21f/embedded)
  AucStatSimple, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatStdDev, v5.21f.5579 (SanctimoniousSwamprat)
  AucStatWOWEcon, v5.21f.5579.5323(5.21f/embedded)
  AucUtilAHWindowControl, v5.21f.5579.5575(5.21f/embedded)
  AucUtilAppraiser, v5.21f.5579.5545(5.21f/embedded)
  AucUtilAskPrice, v5.21f.5579.5447(5.21f/embedded)
  AucUtilAutoMagic, v5.21f.5579.5537(5.21f/embedded)
  AucUtilCompactUI, v5.21f.5579.5550(5.21f/embedded)
  AucUtilEasyBuyout, v5.21f.5579.5576(5.21f/embedded)
  AucUtilFixAH, v5.21f.5579 (SanctimoniousSwamprat)
  AucUtilItemSuggest, v5.21f.5579.5417(5.21f/embedded)
  AucUtilPriceLevel, v5.21f.5579.5535(5.21f/embedded)
  AucUtilScanButton, v5.21f.5579.5403(5.21f/embedded)
  AucUtilScanFinish, v5.21f.5579.5515(5.21f/embedded)
  AucUtilScanProgress, v5.21f.5579.4979(5.21f/embedded)
  AucUtilScanStart, v5.21f.5579.5347(5.21f/embedded)
  AucUtilSearchUI, v5.21f.5579.5556(5.21f/embedded)
  AucUtilSimpleAuction, v5.21f.5579.5531(5.21f/embedded)
  AucUtilVendMarkup, v5.21f.5579.4828(5.21f/embedded)
  Auctionator, v3.2.6
  Auditor2, v5.0.4
  Babylonian, v5.1.DEV.332(/embedded)
  BattlePetBreedID, vv1.5.0
  BeanCounter, v5.21f.5579 (SanctimoniousSwamprat)
  Blitz, v5.9
  BrokerAuditor, v5.0.4
  Chatter, v1.4.9
  Clique, vv60200-1.0.0
  Collectinator, v6.2.3.2
  Configator, v5.1.DEV.396(/embedded)
  DataStore, vr55
  DataStoreAchievements, vr41
  DataStoreAgenda, vr22
  DataStoreAuctions, v6.0.001
  DataStoreCharacters, vr35
  DataStoreContainers, vr51
  DataStoreCrafts, vr68
  DataStoreCurrencies, vr30
  DataStoreGarrisons, vr14
  DataStoreInventory, vr43
  DataStoreMails, vr43
  DataStorePets, vr38
  DataStoreQuests, vr35
  DataStoreReputations, vr36
  DataStoreSpells, vr26
  DataStoreStats, vr25
  DataStoreTalents, vr51
  DBMCore, v
  DBMStatusBarTimers, v
  DebugLib, v5.1.DEV.337(/embedded)
  Dominos, v6.2.8
  DominosActionSets, v
  DominosCast, v
  DominosEncounter, v
  DominosQuest, v5.3.1
  DominosRoll, v
  DominosXP, v
  Enchantrix, v5.21f.5579 (SanctimoniousSwamprat)
  EnchantrixBarker, v5.21f.5579 (SanctimoniousSwamprat)
  GatherMate2, v1.35.6
  GoingPriceUS, v6.2.1461628800
  GoingPriceUSIllidan, v6.2.1461765031
  GoingPriceUSQuelthalas, v6.2.1461771751
  HandyNotes, vv1.4.6
  HandyNotesAzerothsTopTunes, vv1.2
  HandyNotesDraenorTreasures, v1.16a
  HandyNotesHigherLearning, v6.2.0.4
  HandyNotesLostAndFound, v1
  HandyNotesMailboxes, v1
  HandyNotesTreasureHunter, v1
  HandyNotesWellRead, v6.1.0.4
  idTip, v6.2.1
  Informant, v5.21f.5579 (SanctimoniousSwamprat)
  KuiNameplates, v260
  KuiNameplatesAuras, v
  KuiSpellListConfig, v
  LibExtraTip, v5.12.DEV.395(/embedded)
  LibItemUpgradeInfo10, vRelease-60203-18 6.2.2
  LibPeriodicTable31, vv3.3.0.507
  LibPetBreedInfo10, v
  LibSharedMedia30, v3.0-93
  MasterPlanA, vA
  MogIt, v3.5.9
  MogItAccessories, v
  Multishot, v3.1.4
  PokemonTrainer, v6.1.1
  Postal, vv3.5.6
  Quartz, v3.2.7
  Rarity, v1.0
  RarityOptions, v
  Rematch, v4.3.6
  SavedInstances, v6.2.8
  SentMail, v
  ServerHop, v1.19a
  SexyMap, v2.4.26
  Skada, v1.4-33
  SkadaScroll, v1.5.2
  SlideBar, v5.21f.5579 (SanctimoniousSwamprat)
  Stubby, v5.21f.5579 (SanctimoniousSwamprat)
  TheUndermineJournal, v4.1.20160507
  TipHelper, v5.12.DEV.389(/embedded)
  TipTac, v15.12.07
  TipTacItemRef, v15.12.07
  TipTacTalents, v15.07.02
  TomTom, vv60200-2.1.0
  TomTomPing, v1.3 r037
  XLoot, v6.2-13
  XLootFrame, v6.2-13
  XLootGroup, v6.2-13
  XLootMaster, v6.2-13
  XLootMonitor, v6.2-13
  BlizRuntimeLib_enUS v6.2.4.60200 <none>
  (ck=fc5)