diff --git a/examples/SharedMemory/b3PluginManager.cpp b/examples/SharedMemory/b3PluginManager.cpp
index fa06cd52b..7703abb54 100644
--- a/examples/SharedMemory/b3PluginManager.cpp
+++ b/examples/SharedMemory/b3PluginManager.cpp
@@ -112,7 +112,7 @@ struct b3PluginManagerInternalData
 	b3BulletDefaultFileIO m_defaultFileIO;
 	
 	b3PluginManagerInternalData()
-		: m_rpcCommandProcessorInterface(0), m_activeNotificationsBufferIndex(0), m_activeRendererPluginUid(-1), m_activeCollisionPluginUid(-1), m_numNotificationPlugins(0), m_activeFileIOPluginUid(-1)
+		: m_physicsDirect(0), m_rpcCommandProcessorInterface(0), m_activeNotificationsBufferIndex(0), m_activeRendererPluginUid(-1), m_activeCollisionPluginUid(-1), m_numNotificationPlugins(0), m_activeFileIOPluginUid(-1)
 	{
 	}
 };
diff --git a/examples/SharedMemory/plugins/fileIOPlugin/fileIOPlugin.cpp b/examples/SharedMemory/plugins/fileIOPlugin/fileIOPlugin.cpp
index 43d20387a..0be09d9db 100644
--- a/examples/SharedMemory/plugins/fileIOPlugin/fileIOPlugin.cpp
+++ b/examples/SharedMemory/plugins/fileIOPlugin/fileIOPlugin.cpp
@@ -388,35 +388,37 @@ struct WrapperFileIO : public CommonFileIOInterface
 						int childHandle = childFileIO->fileOpen(fileName, mode);
 						if (childHandle>=0)
 						{
-							int fileSize = childFileIO->getFileSize(childHandle);
-							char* buffer = 0;
-							if (fileSize)
-							{
-								buffer = m_cachedFiles.allocateBuffer(fileSize);
-								if (buffer)
-								{
-									int readBytes = childFileIO->fileRead(childHandle, buffer, fileSize);
-									if (readBytes!=fileSize)
-									{
-										if (readBytes<fileSize)
-										{
-											fileSize = readBytes;
-										} else
-										{
-											printf("WrapperFileIO error: reading more bytes (%d) then reported file size (%d) of file %s.\n", readBytes, fileSize, fileName);
-										}
-									}
-								} else
-								{
-									fileSize=0;
-								}
-							}
-
-							//potentially register a zero byte file, or files that only can be read partially
 							if (m_enableFileCaching)
 							{
+								int fileSize = childFileIO->getFileSize(childHandle);
+								char* buffer = 0;
+								if (fileSize)
+								{
+									buffer = m_cachedFiles.allocateBuffer(fileSize);
+									if (buffer)
+									{
+										int readBytes = childFileIO->fileRead(childHandle, buffer, fileSize);
+										if (readBytes!=fileSize)
+										{
+											if (readBytes<fileSize)
+												{
+												fileSize = readBytes;
+											} else
+											{
+												printf("WrapperFileIO error: reading more bytes (%d) then reported file size (%d) of file %s.\n", readBytes, fileSize, fileName);
+											}
+										}
+									} else
+									{
+										fileSize=0;
+									}
+								}
+
+								//potentially register a zero byte file, or files that only can be read partially
+							
 								m_cachedFiles.registerFile(fileName, buffer, fileSize);
 							}
+							
 							childFileIO->fileClose(childHandle);
 							break;
 						}
diff --git a/examples/pybullet/gym/pybullet_data/data/motions/laikago_walk.json b/examples/pybullet/gym/pybullet_data/data/motions/laikago_walk.txt
similarity index 100%
rename from examples/pybullet/gym/pybullet_data/data/motions/laikago_walk.json
rename to examples/pybullet/gym/pybullet_data/data/motions/laikago_walk.txt
diff --git a/examples/pybullet/gym/pybullet_envs/deep_mimic/env/testLaikago.py b/examples/pybullet/gym/pybullet_envs/deep_mimic/env/testLaikago.py
index 1ad8972ed..c7543639f 100644
--- a/examples/pybullet/gym/pybullet_envs/deep_mimic/env/testLaikago.py
+++ b/examples/pybullet/gym/pybullet_envs/deep_mimic/env/testLaikago.py
@@ -116,7 +116,7 @@ joints=[]
 
 mocapData = motion_capture_data.MotionCaptureData()
 
-motionPath = pybullet_data.getDataPath()+"/data/motions/laikago_walk.json"
+motionPath = pybullet_data.getDataPath()+"/data/motions/laikago_walk.txt"
 
 mocapData.Load(motionPath)
 print("mocapData.NumFrames=",mocapData.NumFrames())
diff --git a/setup.py b/setup.py
index 0e7429efc..dbd4f35cc 100644
--- a/setup.py
+++ b/setup.py
@@ -468,7 +468,7 @@ if 'BT_USE_EGL' in EGL_CXX_FLAGS:
 
 setup(
 	name = 'pybullet',
-	version='2.4.8',
+	version='2.4.9',
 	description='Official Python Interface for the Bullet Physics SDK specialized for Robotics Simulation and Reinforcement Learning',
 	long_description='pybullet is an easy to use Python module for physics simulation, robotics and deep reinforcement learning based on the Bullet Physics SDK. With pybullet you can load articulated bodies from URDF, SDF and other file formats. pybullet provides forward dynamics simulation, inverse dynamics computation, forward and inverse kinematics and collision detection and ray intersection queries. Aside from physics simulation, pybullet supports to rendering, with a CPU renderer and OpenGL visualization and support for virtual reality headsets.',
 	url='https://github.com/bulletphysics/bullet3',