diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 49f8fe8a0a..b13c432a14 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -668,6 +668,10 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer) :
     connect(&domainHandler, SIGNAL(disconnectedFromDomain()), SLOT(clearDomainOctreeDetails()));
     connect(&domainHandler, &DomainHandler::domainConnectionRefused, this, &Application::domainConnectionRefused);
 
+    // We could clear ATP assets only when changing domains, but it's possible that the domain you are connected
+    // to has gone down and switched to a new content set, so when you reconnect the cached ATP assets will no longer be valid.
+    connect(&domainHandler, &DomainHandler::disconnectedFromDomain, DependencyManager::get<ScriptCache>().data(), &ScriptCache::clearATPScriptsFromCache);
+
     // update our location every 5 seconds in the metaverse server, assuming that we are authenticated with one
     const qint64 DATA_SERVER_LOCATION_CHANGE_UPDATE_MSECS = 5 * MSECS_PER_SECOND;
 
diff --git a/libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.cpp b/libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.cpp
index 02e5a064f5..a92f36ed71 100644
--- a/libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.cpp
+++ b/libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.cpp
@@ -414,6 +414,7 @@ void OpenGLDisplayPlugin::customizeContext() {
             _cursorPipeline = gpu::Pipeline::create(program, state);
         }
     }
+    updateCompositeFramebuffer();
 }
 
 void OpenGLDisplayPlugin::uncustomizeContext() {
@@ -557,10 +558,7 @@ void OpenGLDisplayPlugin::compositeScene() {
 }
 
 void OpenGLDisplayPlugin::compositeLayers() {
-    auto renderSize = getRecommendedRenderSize();
-    if (!_compositeFramebuffer || _compositeFramebuffer->getSize() != renderSize) {
-        _compositeFramebuffer = gpu::FramebufferPointer(gpu::Framebuffer::create("displayPlugin::composite", gpu::Element::COLOR_RGBA_32, renderSize.x, renderSize.y));
-    }
+    updateCompositeFramebuffer();
 
     {
         PROFILE_RANGE_EX("compositeScene", 0xff0077ff, (uint64_t)presentCount())
@@ -760,3 +758,10 @@ void OpenGLDisplayPlugin::render(std::function<void(gpu::Batch& batch)> f) {
 OpenGLDisplayPlugin::~OpenGLDisplayPlugin() {
     qDebug() << "Destroying OpenGLDisplayPlugin";
 }
+
+void OpenGLDisplayPlugin::updateCompositeFramebuffer() {
+    auto renderSize = getRecommendedRenderSize();
+    if (!_compositeFramebuffer || _compositeFramebuffer->getSize() != renderSize) {
+        _compositeFramebuffer = gpu::FramebufferPointer(gpu::Framebuffer::create("OpenGLDisplayPlugin::composite", gpu::Element::COLOR_RGBA_32, renderSize.x, renderSize.y));
+    }
+}
diff --git a/libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.h b/libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.h
index 9369f6d72c..a6de3f7baa 100644
--- a/libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.h
+++ b/libraries/display-plugins/src/display-plugins/OpenGLDisplayPlugin.h
@@ -78,6 +78,8 @@ protected:
     glm::uvec2 getSurfaceSize() const;
     glm::uvec2 getSurfacePixels() const;
 
+    void updateCompositeFramebuffer();
+
     virtual void compositeLayers();
     virtual void compositeScene();
     virtual void compositeOverlay();
diff --git a/libraries/networking/src/AddressManager.h b/libraries/networking/src/AddressManager.h
index f753bb0548..ab7b53a6d9 100644
--- a/libraries/networking/src/AddressManager.h
+++ b/libraries/networking/src/AddressManager.h
@@ -23,7 +23,7 @@
 #include "AccountManager.h"
 
 const QString HIFI_URL_SCHEME = "hifi";
-const QString DEFAULT_HIFI_ADDRESS = "hifi://dev-welcome";
+const QString DEFAULT_HIFI_ADDRESS = "hifi://welcome";
 const QString SANDBOX_HIFI_ADDRESS = "hifi://localhost";
 const QString SANDBOX_STATUS_URL = "http://localhost:60332/status";
 const QString INDEX_PATH = "/";
diff --git a/libraries/script-engine/src/ScriptCache.cpp b/libraries/script-engine/src/ScriptCache.cpp
index e9f20b5164..96e3d7e914 100644
--- a/libraries/script-engine/src/ScriptCache.cpp
+++ b/libraries/script-engine/src/ScriptCache.cpp
@@ -36,6 +36,19 @@ void ScriptCache::clearCache() {
     _scriptCache.clear();
 }
 
+void ScriptCache::clearATPScriptsFromCache() {
+    Lock lock(_containerLock);
+    qCDebug(scriptengine) << "Clearing ATP scripts from ScriptCache";
+    for (auto it = _scriptCache.begin(); it != _scriptCache.end();) {
+        if (it.key().scheme() == "atp") {
+            qCDebug(scriptengine) << "Removing: " << it.key();
+            it = _scriptCache.erase(it);
+        } else {
+            ++it;
+        }
+    }
+}
+
 QString ScriptCache::getScript(const QUrl& unnormalizedURL, ScriptUser* scriptUser, bool& isPending, bool reload) {
     QUrl url = ResourceManager::normalizeURL(unnormalizedURL);
     QString scriptContents;
diff --git a/libraries/script-engine/src/ScriptCache.h b/libraries/script-engine/src/ScriptCache.h
index 17ba5c4b0a..5aac62b08b 100644
--- a/libraries/script-engine/src/ScriptCache.h
+++ b/libraries/script-engine/src/ScriptCache.h
@@ -39,6 +39,7 @@ class ScriptCache : public QObject, public Dependency {
 
 public:
     void clearCache();
+    Q_INVOKABLE void clearATPScriptsFromCache();
     void getScriptContents(const QString& scriptOrURL, contentAvailableCallback contentAvailable, bool forceDownload = false);
 
 
diff --git a/plugins/openvr/src/OpenVrDisplayPlugin.cpp b/plugins/openvr/src/OpenVrDisplayPlugin.cpp
index 50443ce73c..b9a491a8a2 100644
--- a/plugins/openvr/src/OpenVrDisplayPlugin.cpp
+++ b/plugins/openvr/src/OpenVrDisplayPlugin.cpp
@@ -377,9 +377,6 @@ void OpenVrDisplayPlugin::init() {
 }
 
 bool OpenVrDisplayPlugin::internalActivate() {
-    _openVrDisplayActive = true;
-    _container->setIsOptionChecked(StandingHMDSensorMode, true);
-
     if (!_system) {
         _system = acquireOpenVrSystem();
     }
@@ -388,6 +385,18 @@ bool OpenVrDisplayPlugin::internalActivate() {
         return false;
     }
 
+    // If OpenVR isn't running, then the compositor won't be accessible
+    // FIXME find a way to launch the compositor?
+    if (!vr::VRCompositor()) {
+        qWarning() << "Failed to acquire OpenVR compositor";
+        releaseOpenVrSystem();
+        _system = nullptr;
+        return false;
+    }
+
+    _openVrDisplayActive = true;
+    _container->setIsOptionChecked(StandingHMDSensorMode, true);
+
     _system->GetRecommendedRenderTargetSize(&_renderTargetSize.x, &_renderTargetSize.y);
     // Recommended render target size is per-eye, so double the X size for 
     // left + right eyes
diff --git a/plugins/openvr/src/OpenVrHelpers.cpp b/plugins/openvr/src/OpenVrHelpers.cpp
index ccf318a629..13880af89f 100644
--- a/plugins/openvr/src/OpenVrHelpers.cpp
+++ b/plugins/openvr/src/OpenVrHelpers.cpp
@@ -109,8 +109,12 @@ void releaseOpenVrSystem() {
             vr::Texture_t vrTexture{ (void*)INVALID_GL_TEXTURE_HANDLE, vr::API_OpenGL, vr::ColorSpace_Auto };
             static vr::VRTextureBounds_t OPENVR_TEXTURE_BOUNDS_LEFT{ 0, 0, 0.5f, 1 };
             static vr::VRTextureBounds_t OPENVR_TEXTURE_BOUNDS_RIGHT{ 0.5f, 0, 1, 1 };
-            vr::VRCompositor()->Submit(vr::Eye_Left, &vrTexture, &OPENVR_TEXTURE_BOUNDS_LEFT);
-            vr::VRCompositor()->Submit(vr::Eye_Right, &vrTexture, &OPENVR_TEXTURE_BOUNDS_RIGHT);
+
+            auto compositor = vr::VRCompositor();
+            if (compositor) {
+                compositor->Submit(vr::Eye_Left, &vrTexture, &OPENVR_TEXTURE_BOUNDS_LEFT);
+                compositor->Submit(vr::Eye_Right, &vrTexture, &OPENVR_TEXTURE_BOUNDS_RIGHT);
+            }
 
             vr::VR_Shutdown();
             _openVrQuitRequested = false;