Corrupt catalog when using one USB HDD containing photo files and LR catalog with 2 computers

[#1]

I have a Dell XPS15 laptop and Dell Aurura R8 desktop PC both running Windows 10.

I have my photo files and LR catalog on a removable USB HDD.

I want to add photo files and edit them on the laptop using the USB HDD whilst away from home and have them available on the desktop PC when I get back home again and plug the HDD into it.

However the LR catalog is corrupt when I try to launch LR on the desktop PC.

Is what I'm trying to achieve not possible in Windows 10?

Or am I missing something important?

It's definitely a LR issue as the same results are experienced on 2 different USB drives.

[#2]

I have a Dell XPS15 laptop and Dell Aurura R8 desktop PC both running Windows 10.

I have my photo files and LR catalog on a removable USB HDD.

I want to add photo files and edit them on the laptop using the USB HDD whilst away from home and have them available on the desktop PC when I get back home again and plug the HDD into it.

However the LR catalog is corrupt when I try to launch LR on the desktop PC.

Is what I'm trying to achieve not possible in Windows 10?

Or am I missing something important?

It's definitely a LR issue as the same results are experienced on 2 different USB drives.

[#3]

Define corrupt.