Photoshop thinks my external scratch disk is same size as my local drive

[Benjamin91]

I haven't found anyone else online experiencing this particular issue with scratch disks. Hope someone can help.

I have approx 300gb free space on my external drive, and am using it as a scratch disk. Now Photoshop tells me the scratch disk is full, and when I see the list of disks available, it shows *exactly* the same free space on the external drive, as my local drive (also on another partition).

I have tried,

Rebooting the mac and Photoshop,

Reinstalling Photoshop both with saving my settings, and a complete clean reinstall all settings deleted,

Running first aid on the drive,

Restarting the drive,

Nothing helps.

[JJMack]

It looks like Photoshop is having issues with your Mac system. I find it hard to believe all you disk have exactly the same amount of free space. Make sure you have address all the Mac related issues with Photoshop.

[Benjamin91]

Can you explain youself clearer? This answer gives me no clue as to what you are suggesting.

[Anaiah22544000fanw]

I also am having the same issue - did you ever find a solution?

[Benjamin91]

I never did. I moved to iCloud drive, so I could have everything "locally"

[D Fosse]

Make sure the other disks are correctly formatted (APFS or HFS+) - not exFAT which doesn't work well in later MacOS versions.

[PECourtejoie]

Hello, also ensure that you give permissions to Photoshop to access the other drives.

By settings, do you mean the preferences? 

[deliar87327234]

I have the same issue. My external Drive has 500 GB! yet I still get Scratch disk Full Error and when I check it shows the same amount of space in both internal memory and external drive. I have updated OS, deleted PS, reinstalled. Still the same for a year now..