In Logic Pro X, "The document "(file name)" could not be saved"
Today I am getting a new error when trying to save an existing project. I get a "document could not be saved" error message. Using Save As works, as long as I change the file name or save to a new location, but obviously I do not want to keep doing this. This is happening with any Logic project I open. Cannot save, only save as. I tried a "fix" I read about where I uncheck the Core Audio enabled check box, to no avail.
The only thing new to my workstation is that I am now storing and saving projects on a new external SSD. Is there some special way I need to format that SSD? Again, Logic will let me save to the SSD, but only by using save as and giving the file a new name or location on the drive.
Thanks in advance.
MacBook Pro 15", macOS 10.15