Only if not already created: a new tyCache object

[im.thatoneguy]

This doesn't appear to be respected. It will keep generating more and more tyCaches. 

Export Particles:

Only if not already created: a new tyCache object will only be created, if an existing one using the exporter’s output sequence as its input does not already exist. If one already exists, it will simply be updated.

[tyFlow]

Is there something idiosyncratic about your output path? Non-english characters, UNC path, relative path, etc, or something? Because in normal circumstances this feature is definitely working...

[im.thatoneguy]

Is there something idiosyncratic about your output path? Non-english characters, UNC path, relative path, etc, or something? Because in normal circumstances this feature is definitely working...

Not UNC, but is network drive. 

W:\25002 Seattle Mother Earth\Assets\MotherNature\DataIO\VegetationCaches\tyCache_tyFlow_Lashes.tyc

Is there a maxscript I can step through and debug?