Single-line parse error (Agent Manager)

Hi All

    I read agent manager document which could process sinigle-line log through Agent manager to sentinel .

I try to build FTP on IIS plateform (Win2016), and try to generate log. then crate a single line Data collection rule.

it seem could read file on agent side..but I check Sentinel Web Console , these log show "Parse failed" like below::

Whether I forgot some steps to cause single line log parse failed.