Thanks for all the help. First, running chmod 700 /run/user/1000 corrected the QStandardPaths: wrong permissions issue.
Now when I run the simulation I get the following errors Qt GUI: Could not restore geometry: restoreGeometry(self, Union[QByteArray, bytes, bytearray]): argument 1 has unexpected type 'NoneType' ( I have checked all the blocks and cannot find any "NoneType" arguments, the QT GUI does not indicate any errors) ( not looked into the following errors yet ) ALSA lib pulse.c:242:(pulse_connect) PulseAudio: Unable to connect: Timeout audio_alsa_source :error: [default]: Connection refused Traceback (most recent call last): File "/home/jammy/radio_lessons/RTTY_receive.py", line 341, in <module> main() File "/home/jammy/radio_lessons/RTTY_receive.py", line 319, in main tb = top_block_cls() File "/home/jammy/radio_lessons/RTTY_receive.py", line 222, in __init__ self.audio_source_0 = audio.source(samp_rate, '', True) RuntimeError: audio_alsa_source >>> Done (return code 1) -- gary garcia gary.garc...@gmail.com (858)442-9317