Why doesn't Logstash read the entire specified log?

Question

elasticsearch

Colleagues, such a question.
After the full setup, ELK decided to check how Logstash writes and sends logs holistically.
I decided to create a script that writes the same line "Hello World!!!" into two log files.
I set the first one on the logstash, I did not touch the second one.
As a result, after launching logstash, I noticed that not all lines were transferred to Kibana.
What could be the problem?
Tell me , plz

Logstash config:


The last line in the log.


The last line in Kibana


That is, in this example, about 100 lines of the log are missing.