Owner of external drive changed to root after last update

[Robert Pearson]

After installing the latest Ubuntu MATE 14.10 and rebooting my system, one of my external USB 3 drives with NTFS became unusable. I got permission errors when I tried to update the drive. When I used Caja to check the permissions they had been changed from robert to root. I opened Caja as administrator and opened the properties window and selected the permissions tab. When I try to change the owner to robert in the dropdown list, Caja immediately changes it back to root. The other drive screwed up is Shared which is a partition on my first hard drive also with an NTFS.

I noticed that when I open the menu on the drive, the "Paste into folder" entry flickers from normal to grayed out.

One good thing is that Caja in the left panel under Devices, the volume names appear instead of just the volume size. Thank you for fixing that bug.

Please tell me how to use the command line to change the owner of the directories on my external drive. How do I find the owner numbers so I can use the chown command.
I tried cd "/media/robert/4TB Seagate 3" followed by sudo chown robert Garbage and sudo chown robert Users. But afterwards the permissions are still unchanged. It does not even ask me for the sudo password.

The drives NOT screwed up are '4TB g-drive' with NTFS, '4TB LaCie' with NTFS, '4TB Seagate 1' with NTFS, '5TB Seagate 1' with ext4, and '8TB Seagate 1' with ext4.

This bug only started after the last update of Ubuntu. How can I restore my system to a useful state after your last update?

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: caja 1.20.2-5
ProcVersionSignature: Ubuntu 4.18.0-16.17-generic 4.18.20
Uname: Linux 4.18.0-16-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.2
Architecture: amd64
CurrentDesktop: MATE
Date: Mon Mar 25 18:54:45 2019
InstallationDate: Installed on 2018-12-16 (99 days ago)
InstallationMedia: Ubuntu-MATE 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2)
SourcePackage: caja
UpgradeStatus: No upgrade log present (probably fresh install)

[Robert Pearson (rpearsonii)]

Apparently only Caja opened as superuser is allowed to read the partition label. Non superuser windows can only display the volume size. In addition, the non-superuser window shows the partitions of my internal drives that the superuser version leaves out.

Apparently the user shown by Caja and command line are not the actual ones. When I tried to save a file into a directory owned by "root" (I am logged in as robert) it succeeds. So the entire permission code needs to be checked for bugs.

[Launchpad Janitor (janitor)]

[Expired for caja (Ubuntu) because there has been no activity for 60 days.]