Adobe Acrobat DC Reader 64-bit taking all available RAM (22.001.20085)

[markp71816724]

Hi all. We have Acrobat Reader DC 64-bit deployed through our enterprise.

At any given point, roughly 8-10 users will experience Acrobat taking all available memory resources, irrespective of how many documents are opened (could be one, five or 10). 

I've upgraded Acrobat regularly and see no difference. Recreating profiles has also yielded no effect. What can I try to remediate? I see turning page caching off was a fix for an issue in September 21, but this issue appears patched at the link below.

Solved: Adobe Acrobat Reader DC Preview fills RAM - Adobe Support Community - 12392986

Any help would be greatly appreciated as this issue is causing lots of chaos. 

[markp71816724]

Disabling the following settings fixes the Acrobat memory leak:

Preferences > Page Display > Uncheck Use Page Cache

Preferences > Reading > Page vs Document: Only read the currently visible pages

Registry keys for Reader DC and 2017 below:

[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\DC\Originals]
"bUsePageCache"=dword:00000000

[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\2017\Originals]
"bUsePageCache"=dword:00000000

[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\DC\Accessibility]
"iReadingMode"=dword:00000001

[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\2017\Accessibility]
"iReadingMode"=dword:00000001