Weird rarcrack issue

[xsechs]

Hey,
So I get rarcrack to work on some test files I made but something strange happens when I try cracking a certain 7zip file. Instead of probing for a password, it automatically says 1-9 ab (sometimes) are good passwords and it says it's cracked. To verify if it was a bigger issue, I download 7zip crack for windows and it came back with the same type of issue and it states "1" is a good password but it's not the password :\. Any suggestions?

[Archangel-Amael]

Might be a good idea to post your actual commands and the actual output.