it doesn't properly work for captchas with more than 5 characters

[alixTal]

Is there any reason this does not work with a captcha with more than 5 characters? here's an example: output : dqqys (it skips one character.)

some other examples:

output: v8dmd

output: dea8z (this is not accurate)

output: qu57z

output: h8hy7