Hello Thanks for the feedback! Unfortunately I cannot reproduce #1 and #3, I’m in Linux. Are you in the latest version? If so, can you check if you get an error in the console when adding the actor and when auto-detecting? (ctrl + shift + I). I suspect is something related to the blob attachment.
About the export, I found a bug and fixed in 1.4.1, thanks! The quick export will start to working after an export has been made. (its the same command without the file picker)