It is IATA standard to use two name field: FIRST NAME + MIDDLE NAME followed by LAST NAME. Thus, if your name is JONATHAN BAKER FIELDS, your ticket will read JONATHANB FIELDS or JONATHANBANKER FIELDS. In fact, in your case, the field length is probably exceeded and thus, the first & middle names are concatenated and then shortened.
If you used a title, you will even see the title concatenated and your ticket will then read JONATHANBMR BAKER or JONATHANB BAKERMR.
You don't have an issue.