I wouldn't be surprised if the issue is something about permissions especially since I have been asked to give everytime whenever I try to do something with my phone  It's been 4 weeks already and you said that they were only reviewing the issue and...

Same issue here, just bought s24 plus about 2 weeks ago and had no problem about accessing and file transfering through SFTP both ways and just realized I get the same error that is mentioned in the thread. I'll also try to share my log file and see ...