diff --git a/apps/openmw/mwgui/container.cpp b/apps/openmw/mwgui/container.cpp
index 810a369d8e..fdb27addc5 100644
--- a/apps/openmw/mwgui/container.cpp
+++ b/apps/openmw/mwgui/container.cpp
@@ -230,36 +230,38 @@ namespace MWGui
         {
             MWBase::Environment::get().getWindowManager()->setKeyFocusWidget(mCloseButton);
 
+            // Copy mPtr because onTakeAllButtonClicked closes the window which resets the reference
+            MWWorld::Ptr ptr = mPtr;
             onTakeAllButtonClicked(mTakeButton);
 
-            if (mPtr.getClass().isPersistent(mPtr))
+            if (ptr.getClass().isPersistent(ptr))
                 MWBase::Environment::get().getWindowManager()->messageBox("#{sDisposeCorpseFail}");
             else
             {
-                MWMechanics::CreatureStats& creatureStats = mPtr.getClass().getCreatureStats(mPtr);
+                MWMechanics::CreatureStats& creatureStats = ptr.getClass().getCreatureStats(ptr);
 
                 // If we dispose corpse before end of death animation, we should update death counter counter manually.
                 // Also we should run actor's script - it may react on actor's death.
                 if (creatureStats.isDead() && !creatureStats.isDeathAnimationFinished())
                 {
                     creatureStats.setDeathAnimationFinished(true);
-                    MWBase::Environment::get().getMechanicsManager()->notifyDied(mPtr);
+                    MWBase::Environment::get().getMechanicsManager()->notifyDied(ptr);
 
-                    const std::string script = mPtr.getClass().getScript(mPtr);
+                    const std::string script = ptr.getClass().getScript(ptr);
                     if (!script.empty() && MWBase::Environment::get().getWorld()->getScriptsEnabled())
                     {
-                        MWScript::InterpreterContext interpreterContext (&mPtr.getRefData().getLocals(), mPtr);
+                        MWScript::InterpreterContext interpreterContext (&ptr.getRefData().getLocals(), ptr);
                         MWBase::Environment::get().getScriptManager()->run (script, interpreterContext);
                     }
 
                     // Clean up summoned creatures as well
                     std::map<ESM::SummonKey, int>& creatureMap = creatureStats.getSummonedCreatureMap();
                     for (const auto& creature : creatureMap)
-                        MWBase::Environment::get().getMechanicsManager()->cleanupSummonedCreature(mPtr, creature.second);
+                        MWBase::Environment::get().getMechanicsManager()->cleanupSummonedCreature(ptr, creature.second);
                     creatureMap.clear();
                 }
 
-                MWBase::Environment::get().getWorld()->deleteObject(mPtr);
+                MWBase::Environment::get().getWorld()->deleteObject(ptr);
             }
 
             mPtr = MWWorld::Ptr();
diff --git a/components/misc/rng.cpp b/components/misc/rng.cpp
index 4189404b15..23d8204482 100644
--- a/components/misc/rng.cpp
+++ b/components/misc/rng.cpp
@@ -30,17 +30,17 @@ namespace Misc
 
     float Rng::rollProbability(Seed& seed)
     {
-        return std::uniform_real_distribution<float>(0, 1 - std::numeric_limits<float>::epsilon())(sSeed.mGenerator);
+        return std::uniform_real_distribution<float>(0, 1 - std::numeric_limits<float>::epsilon())(seed.mGenerator);
     }
 
     float Rng::rollClosedProbability(Seed& seed)
     {
-        return std::uniform_real_distribution<float>(0, 1)(sSeed.mGenerator);
+        return std::uniform_real_distribution<float>(0, 1)(seed.mGenerator);
     }
 
     int Rng::rollDice(int max, Seed& seed)
     {
-        return max > 0 ? std::uniform_int_distribution<int>(0, max - 1)(sSeed.mGenerator) : 0;
+        return max > 0 ? std::uniform_int_distribution<int>(0, max - 1)(seed.mGenerator) : 0;
     }
 
     unsigned int Rng::generateDefaultSeed()