diff --git a/PallyPower.lua b/PallyPower.lua
index b924194..4aed5d8 100644
--- a/PallyPower.lua
+++ b/PallyPower.lua
@@ -96,12 +96,6 @@ function PallyPower:OnInitialize()
 	self.db.RegisterCallback(self, "OnProfileCopied", "OnProfileChanged")
 	self.db.RegisterCallback(self, "OnProfileReset", "OnProfileChanged")
 
-	if not PallyPower_SavedPresets or PallyPower_SavedPresets == nil then
-		PallyPower_SavedPresets = {}
-		PallyPower_SavedPresets["PallyPower_Assignments"] = {[0] = {}}
-		PallyPower_SavedPresets["PallyPower_NormalAssignments"] = {[0] = {}}
-	end
-
 	self.opt = self.db.profile
 	self.options.args.profiles = LibStub("AceDBOptions-3.0"):GetOptionsTable(self.db)
 
@@ -175,6 +169,19 @@ function PallyPower:OnInitialize()
 	if self.isVanilla then
 		LCD:Register("PallyPower")
 	end
+
+	-- the transition from TBC Classic to Wrath Classic has caused some errors for players with SavedVariables values intended for the 2.5.4 clients and earlier
+	if self.isWrath and not self.opt.WrathTransition then
+		PallyPower:Purge()
+
+		self.opt.WrathTransition = true
+	end
+
+	if not PallyPower_SavedPresets or PallyPower_SavedPresets == nil then
+		PallyPower_SavedPresets = {}
+		PallyPower_SavedPresets["PallyPower_Assignments"] = {[0] = {}}
+		PallyPower_SavedPresets["PallyPower_NormalAssignments"] = {[0] = {}}
+	end
 end
 
 function PallyPower:OnEnable()
diff --git a/PallyPowerValues.lua b/PallyPowerValues.lua
index 28c2865..1ae4123 100644
--- a/PallyPowerValues.lua
+++ b/PallyPowerValues.lua
@@ -65,7 +65,8 @@ PALLYPOWER_DEFAULT_VALUES = {
 		ShowTooltips = true,
 		ShowWhenSolo = true,
 		skin = "Smooth",
-		SmartBuffs = true
+		SmartBuffs = true,
+		WrathTransition = false,
 	}
 }
 
@@ -123,7 +124,8 @@ PALLYPOWER_OTHER_VALUES = {
 		ShowTooltips = true,
 		ShowWhenSolo = true,
 		skin = "Smooth",
-		SmartBuffs = false
+		SmartBuffs = false,
+		WrathTransition = false,
 	}
 }