ID 516035 - Increased memory usage occurs and is not fully freed when clearing the cache after importing and Viewing .ari media files on the Timeline

Problem summary
Increased memory usage occurs and is not fully freed when clearing the cache after importing and Viewing .ari media files on the Timeline.
 
Customer reported version
Hiero 13.2v3
 
Customer reported platform
CentOS 7
 
Steps to reproduce
1) In NukeStudio/Hiero, import an .ari file sequence.
2) Drag/drop the .ari clip into the Sequence bin to create a new timeline.
3) Copy the .ari clip many times and onto different tracks.(Hold ALT+LMB drag)
4) Begin playback and scrubbing the timeline over the many clips, observing memory performance.
5) Attempt to clear the cache and review the memory output.
 

 
Expected behavior
The cache should be fully cleared after using the command when .ari files are loaded/viewed.
 
Actual behavior
The cache does not fully clear or release after importing and viewing .ari files.
 
Workaround
There is no available workaround at this time.
 
Reproduced by Support in:
NukeStudio/Hiero 13.2v3 - Windows 10, CentOS 7