Inconsistency between dictionary attack and brute force attack

[PerCT]

Hi all! 

I have successfully cracked a hash type 11400 (SIP Digest) with the command:

hashcat -a 3 -m 11400 hash.txt ?1?1?1?2?3?3?3?1 -1 ?l -2 ?u -3 ?d

For example, suppose the result of this atack is "atbK184z"

If I now launch a dictionary attack, with a "dict.txt" file that only includes the word "atbK184z" with this command:

hashcat -a 0 -m 11400 hash.txt dict.txt

The process ends as "Exhausted" and there is no valid result, but I can see on screen Candidates.#1....: atbK184z -> atbK184z

Any ideas?

Thanks.