diff --git a/WeakAuras/GenericTrigger.lua b/WeakAuras/GenericTrigger.lua
index 5774757..75a54d9 100644
--- a/WeakAuras/GenericTrigger.lua
+++ b/WeakAuras/GenericTrigger.lua
@@ -1071,7 +1071,8 @@ local function AddFakeInformation(data, triggernum, state, eventData)
     state.progressType = "timed"
   end
   if state.progressType == "timed" then
-    if state.expirationTime and state.expirationTime ~= math.huge and state.expirationTime > GetTime() then
+    local expirationTime = state.expirationTime
+    if expirationTime and type(expirationTime) == "number" and expirationTime ~= math.huge and expirationTime > GetTime() then
       return
     end
     state.progressType = "timed"
diff --git a/WeakAuras/RegionTypes/RegionPrototype.lua b/WeakAuras/RegionTypes/RegionPrototype.lua
index ade62f1..82d3b45 100644
--- a/WeakAuras/RegionTypes/RegionPrototype.lua
+++ b/WeakAuras/RegionTypes/RegionPrototype.lua
@@ -449,7 +449,11 @@ local function UpdateProgressFromState(self, minMaxConfig, state, progressSource
         expirationTime = math.huge
       end
     end
+
     local duration = totalProperty and state[totalProperty] or 0
+    if type(duration) ~= "number" then
+      duration = 0
+    end
     local adjustMin
     if minMaxConfig.adjustedMin then
       adjustMin = minMaxConfig.adjustedMin
@@ -469,6 +473,7 @@ local function UpdateProgressFromState(self, minMaxConfig, state, progressSource
     else
       max = duration
     end
+
     self.minProgress, self.maxProgress = adjustMin, max
     self.progressType = "timed"
     self.duration = max - adjustMin
diff --git a/WeakAuras/WeakAuras.lua b/WeakAuras/WeakAuras.lua
index f1422be..31264bd 100644
--- a/WeakAuras/WeakAuras.lua
+++ b/WeakAuras/WeakAuras.lua
@@ -4036,10 +4036,16 @@ do
       local changed = false
       for triggernum, triggerData in ipairs(triggers) do
         for id, state in pairs(triggerData) do
-          if state.progressType == "timed" and state.expirationTime and state.expirationTime < t and state.duration and state.duration > 0 then
-            state.expirationTime = t + state.duration
-            state.changed = true
-            changed = true
+          if state.progressType == "timed" then
+            local expirationTime = state.expirationTime
+            local duration = state.duration
+            if expirationTime and type(expirationTime) == "number" and expirationTime < t
+               and duration and type(duration) == "number" and duration > 0
+            then
+              state.expirationTime = t + state.duration
+              state.changed = true
+              changed = true
+            end
           end
         end
       end
@@ -4161,7 +4167,7 @@ local function startStopTimers(id, cloneId, triggernum, state)
       timer:CancelTimer(record.handle);
     end
 
-    if expirationTime then
+    if expirationTime and type(expirationTime) == "number" then
       record.handle = timer:ScheduleTimer(
         function()
           if (state.show ~= false and state.show ~= nil) then
@@ -4172,7 +4178,6 @@ local function startStopTimers(id, cloneId, triggernum, state)
               if Private.watched_trigger_events[id] and Private.watched_trigger_events[id][triggernum] then
                 Private.AddToWatchedTriggerDelay(id, triggernum)
             end
-
             Private.UpdatedTriggerState(id);
           end
         end,