CUDA: initialization error

Hi,
I compiled the latest repo: 0.5.3, and received the error below. This specific file was read without an issue in a cpu context.
[cuda_stream.zip](https://github.com/dmlc/decord/files/6634102/cuda_stream.zip)
Attached is the file in which the error occurs,

Traceback (most recent call last):
File "/home/peter/virtualenvs/dl_387/lib/python3.8/site-packages/IPython/core/interactiveshell.py", line 3441, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "", line 1, in
vr = VideoReader(fname, num_threads=3, ctx=gpu())
File "/home/peter/virtualenvs/dl_387/lib/python3.8/site-packages/decord-0.5.3-py3.8-linux-x86_64.egg/decord/video_reader.py", line 54, in __init__
self._handle = _CAPI_VideoReaderGetVideoReader(
File "/home/peter/virtualenvs/dl_387/lib/python3.8/site-packages/decord-0.5.3-py3.8-linux-x86_64.egg/decord/_ffi/_ctypes/function.py", line 173, in __call__
check_call(_LIB.DECORDFuncCall(
File "/home/peter/virtualenvs/dl_387/lib/python3.8/site-packages/decord-0.5.3-py3.8-linux-x86_64.egg/decord/_ffi/base.py", line 78, in check_call
raise DECORDError(err_str)
decord._ffi.base.DECORDError: [22:45:27] /home/peter/Downloads/decord/src/video/nvcodec/cuda_stream.cc:20: Check failed: e == cudaSuccess || e == cudaErrorCudartUnloading CUDA: initialization error at line: 20 in file: /home/peter/Downloads/decord/src/video/nvcodec/cuda_stream.cc

CUDA Toolkit 11.1
NVidia driver : 465.37
Ubuntu 18.04
python 3.8.5