I copied a JPG file from the computer hard drive to the external SSD T5 drive. Opened the file in photoshop, make some changed and try to save the file not could not.
I also tried to open a random JPG on the portable t5 drive in Preview, added some text to the image, again, I could not save the file. Same thing with text-based documents on the drive. I could creat a new document, save it, but after adding /deleting some text, I could no longer save the document.
Is there some kind of permission allowing the document to be copy-pasted / created to the portable drive, but no permission to modify (save changes) of the document?
I am using the drive with MacOS, the file format is ExFAT.
Sharing & permission: You have custom access.
I don't have access to change permissions. How could I get access to allow file modification on this portable drive?