There are a couple of other posts about this, but no helpful responses that I have seen (mostly links to pages explaining what purgeable space is). I have a large amount of purgeable space on my OSX system SSD, which I am using as my primary scratch disk. Photoshop does not include the purgeable space in its calculation of how much memory is available, as seen in the scratch disk section of Preferences.
1. Can Photoshop write to this purgeable space for scratch disk purposes, despite apparently not recognising it as available (PS can, presumably, write a file to this space when saving, so seems plausible)?
2. Is there any simple way to purge the space (I am aware of complicated workarounds)?
If it is not possible for PS to use this space it would seem like a bug, particularly since using a system SSD as scratch disk is actually recommended as a good set-up by Adobe.
Mac Pro Late 2013
Mojave 10.14.6
PS 2019, 2020 & 2021
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