We are currently using td-agent v4 and are having trouble with some missing logs.

[mochi192]

We are currently using td-agent v4 and are having trouble with some missing logs.
After duplicating the received logs using the copy plugin and changing the tags using the retag plugin
We are uploading the files to S3 and GSC, but compared with the result of S3 and GSC, sometimes the size of the files is different.
When I checked the detail of the files, I found that some part of the JSON format data in the smaller file was cut off.
I am finding it strange that only one of both files is missing even though I am copying it.
Do you have any ideas about the cause of this?
Also, we shall be grateful if you can provide us with a solution.

Version used

• td-agent 4.3.0 fluentd 1.14.3
  Plug-ins used
• fluent-plugin-s3 (1.6.1)
• fluent-plugin-retag (0.1.1)
• fluent-plugin-gcs (0.4.0)