If probable.txt failed to crack your handshake, one of four things is happening:

Understanding RockYou.txt: A Tool for Security and a Weapon for Hackers

cewl https://targetcompany.com -m 8 -w custom.txt

"Wordlist: probable.txt did not..."

probable.txt will find these.

indicates that the specific password for the captured handshake was not found in your wordlist What This Message Means Missing Password

The error message "Failed To Crack Handshake Wordlist-probable.txt Did Not" is a filter, not a dead end. It tells you that the user did not pick a password from the top 16 million most common breaches. That is valuable intelligence.