diff --git a/assignment-client/src/audio/AudioMixer.cpp b/assignment-client/src/audio/AudioMixer.cpp
index deff1dfa6f..04acae6f05 100644
--- a/assignment-client/src/audio/AudioMixer.cpp
+++ b/assignment-client/src/audio/AudioMixer.cpp
@@ -468,7 +468,9 @@ std::chrono::microseconds AudioMixer::timeFrame(p_high_resolution_clock::time_po
     timestamp = std::max(now, nextTimestamp);
 
     // sleep until the next frame should start
-    std::this_thread::sleep_until(timestamp);
+    // WIN32 sleep_until is broken until VS2015 Update 2
+    // instead, std::max (above) guarantees that timestamp >= now, so we can sleep_for
+    std::this_thread::sleep_for(timestamp - now);
 
     return duration;
 }
diff --git a/libraries/gpu-gl/src/gpu/gl45/GL45BackendTexture.cpp b/libraries/gpu-gl/src/gpu/gl45/GL45BackendTexture.cpp
index 6632bf936e..b540a403c7 100644
--- a/libraries/gpu-gl/src/gpu/gl45/GL45BackendTexture.cpp
+++ b/libraries/gpu-gl/src/gpu/gl45/GL45BackendTexture.cpp
@@ -92,6 +92,7 @@ void SparseInfo::maybeMakeSparse() {
     if (!texture._gpuObject.isAutogenerateMips()) {
         return;
     }
+    return;
 
     const uvec3 dimensions = texture._gpuObject.getDimensions();
     auto allowedPageDimensions = getPageDimensionsForFormat(texture._target, texture._internalFormat);