comm_message KeyError: 'call_return_value' in console after interpreter change.

Description

What steps will reproduce the problem?

Switched python interpreter within Spyder to recently built new environnment.

Restarted kernel

In new kernel, simple functions (e.g. 1+1) return correct values, but console spits errors:

Exception in comm_msg for 82c5022f905611ef95c1a4423b078dfb Traceback (most recent call last): File "C:\Users\AHBL\AppData\Local\miniforge3\envs\pyl_whl\lib\site-packages\comm\base_comm.py", line 296, in comm_msg comm.handle_msg(msg) File "C:\Users\AHBL\AppData\Local\miniforge3\envs\pyl_whl\lib\site-packages\spyder_kernels\comms\frontendcomm.py", line 206, in handle_msg comm._msg_callback(msg) File "C:\Users\AHBL\AppData\Local\miniforge3\envs\pyl_whl\lib\site-packages\spyder_kernels\comms\commbase.py", line 339, in _comm_message self._message_handlers[spyder_msg_type](msg_dict, buffers) File "C:\Users\AHBL\AppData\Local\miniforge3\envs\pyl_whl\lib\site-packages\spyder_kernels\comms\commbase.py", line 487, in _handle_remote_call_reply return_value = content['call_return_value'] KeyError: 'call_return_value'

This error message repeats in the console, even without user input.

Traceback

Exception in comms call get_namespace_view:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range
Exception in comms call get_var_properties:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range
Exception in comms call is_special_kernel_valid:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range
Exception in comms call get_namespace_view:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range
Exception in comms call get_var_properties:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range
Exception in comms call get_cwd:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range
Exception in comms call get_namespace_view:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range
Exception in comms call get_var_properties:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range
Exception in comms call get_cwd:
  File "C:\Users\AHBL\Anaconda3\lib\site-packages\spyder_kernels\comms\commbase.py", line 317, in _comm_message
    buffer = cloudpickle.loads(msg['buffers'][0],
IndexError: list index out of range

Versions

Spyder version: 5.2.2
Python version: 3.9.13
Qt version: 5.9.7
PyQt5 version: 5.9.2
Operating System: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0          :  1.4.0 (OK)
chardet >=2.0.0               :  4.0.0 (OK)
cloudpickle >=0.5.0           :  2.0.0 (OK)
cookiecutter >=1.6.0          :  1.7.3 (OK)
diff_match_patch >=20181111   :  20200713 (OK)
intervaltree >=3.0.2          :  3.1.0 (OK)
IPython >=7.6.0;<8.0.0        :  7.31.1 (OK)
jedi >=0.17.2;<0.19.0         :  0.18.1 (OK)
jellyfish >=0.7               :  0.9.0 (OK)
jsonschema >=3.2.0            :  4.16.0 (OK)
keyring >=17.0.0              :  23.4.0 (OK)
nbconvert >=4.0               :  6.4.4 (OK)
numpydoc >=0.6.0              :  1.4.0 (OK)
paramiko >=2.4.0              :  2.8.1 (OK)
parso >=0.7.0;<0.9.0          :  0.8.3 (OK)
pexpect >=4.4.0               :  4.8.0 (OK)
pickleshare >=0.4             :  0.7.5 (OK)
psutil >=5.3                  :  5.9.0 (OK)
pygments >=2.0                :  2.11.2 (OK)
pylint >=2.5.0                :  2.14.5 (OK)
pyls_spyder >=0.4.0           :  0.4.0 (OK)
pylsp >=1.3.2;<1.4.0          :  1.3.3 (OK)
pylsp_black >=1.0.0           :  1.0.0 (OK)
qdarkstyle =3.0.2             :  3.0.2 (OK)
qstylizer >=0.1.10            :  0.1.10 (OK)
qtawesome >=1.0.2             :  1.0.3 (OK)
qtconsole >=5.2.1;<5.3.0      :  5.2.2 (OK)
qtpy >=1.5.0                  :  2.2.0 (OK)
rtree >=0.9.7                 :  0.9.7 (OK)
setuptools >=49.6.0           :  63.4.1 (OK)
sphinx >=0.6.6                :  5.0.2 (OK)
spyder_kernels >=2.2.1;<2.3.0 :  2.2.1 (OK)
textdistance >=4.2.0          :  4.2.1 (OK)
three_merge >=0.1.1           :  0.1.1 (OK)
watchdog >=0.10.3             :  2.1.6 (OK)
zmq >=17                      :  23.2.0 (OK)

# Optional:
cython >=0.21                 :  0.29.32 (OK)
matplotlib >=2.0.0            :  3.5.2 (OK)
numpy >=1.7                   :  1.21.5 (OK)
pandas >=1.1.1                :  1.4.4 (OK)
scipy >=0.17.0                :  1.9.1 (OK)
sympy >=0.7.3                 :  1.10.1 (OK)

spyder-ide / spyder