diff --git a/.gitignore b/.gitignore
index 6985cf1b..ce0eaee0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ Cargo.lock
 
 # MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
+.python-version
diff --git a/crates/ratchet-core/src/storage/cpu_buffer.rs b/crates/ratchet-core/src/storage/cpu_buffer.rs
index b63147a7..a360a13b 100644
--- a/crates/ratchet-core/src/storage/cpu_buffer.rs
+++ b/crates/ratchet-core/src/storage/cpu_buffer.rs
@@ -30,6 +30,7 @@ impl RawCPUBuffer {
             assert!(!ptr.is_null());
             ptr
         } as *mut u8;
+        println!("Uninitialized tensor ptr: {:p}", data);
         Self(data, layout)
     }
 
@@ -65,6 +66,7 @@ impl Clone for RawCPUBuffer {
 impl Drop for RawCPUBuffer {
     fn drop(&mut self) {
         if !self.0.is_null() && self.1.size() > 0 {
+            println!("Dropping tensor ptr: {:p}", self.0);
             unsafe { std::alloc::dealloc(self.0, self.1) }
         }
     }
diff --git a/crates/ratchet-core/src/storage/gpu_buffer.rs b/crates/ratchet-core/src/storage/gpu_buffer.rs
index e7aa856a..722e8fc6 100644
--- a/crates/ratchet-core/src/storage/gpu_buffer.rs
+++ b/crates/ratchet-core/src/storage/gpu_buffer.rs
@@ -91,7 +91,7 @@ impl DeviceStorage for RawGPUBuffer {
         self.validate_usages(BufferUsages::COPY_SRC)?;
         let device = device.try_gpu()?;
         let buffer_slice = self.inner.slice(..);
-        let (tx, rx) = futures_intrusive::channel::shared::oneshot_channel();
+        let (tx, rx) = std::sync::mpsc::channel();
         let alignment = self.alignment;
 
         wgpu::util::DownloadBuffer::read_buffer(
@@ -108,8 +108,8 @@ impl DeviceStorage for RawGPUBuffer {
         );
         device.poll(wgpu::Maintain::Wait);
         //TODO: fix unwrap
-        let storage = pollster::block_on(async { rx.receive().await })
-            .ok_or(TensorError::TransferError)
+        let storage = rx
+            .recv()
             .unwrap()
             .map_err(|_| TensorError::TransferError)
             .unwrap();
diff --git a/crates/ratchet-core/src/tensor.rs b/crates/ratchet-core/src/tensor.rs
index ef72021d..ea66de7e 100644
--- a/crates/ratchet-core/src/tensor.rs
+++ b/crates/ratchet-core/src/tensor.rs
@@ -275,11 +275,9 @@ impl Tensor {
         Ok(())
     }
 
-    async fn to_cpu(&self) -> Result<Tensor, TensorError> {
-        let raw_gpu_buf = {
-            let storage_resource = self.storage().try_read().ok_or(TensorError::NotResolved)?;
-            storage_resource.try_gpu()?.clone()
-        };
+    fn to_cpu(&self) -> Result<Tensor, TensorError> {
+        let storage_resource = self.storage().try_read().ok_or(TensorError::NotResolved)?;
+        let raw_gpu_buf = storage_resource.try_gpu()?.clone();
         Ok(Tensor::new(
             LazyOp::Const,
             self.view.clone(),
@@ -290,7 +288,7 @@ impl Tensor {
 
     pub fn to(&self, device: Device) -> Result<Tensor, TensorError> {
         match (self.device(), device) {
-            (Device::GPU(_), Device::CPU) => pollster::block_on(self.to_cpu()),
+            (Device::GPU(_), Device::CPU) => self.to_cpu(),
             (Device::CPU, Device::GPU(_)) => todo!(),
             _ => Ok(self.clone()),
         }