Will a short butt crack effect your BBL results?

Dear Dreaming2Long,
it is hard to tell for sure without an examination. If you are considering surgery, I would suggest you consult a board-certified plastic surgeon. Only after a thorough examination, you will get more information and recommendations.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

You are in good company with many others who had high hopes for BBL but instead received disappointing results (lumpiness, unevenness, lack of projection in the central and/or lower buttock, post-deflation sagging, etc.) as most of the fat melts away. It is not quite as much the quality of the doctor nor liposuction technique but rather the quality of the procedure that is a large part of the problem. Thus, going back for additional rounds of BBL most often produces the same disappointing results but at another financial loss.

Buttock implants, however, provide a more reliable, predictable, relatively safe, and permanent result, especially for adding projection to the buttock and often smoothing out lumpiness. When considering buttock implants make sure that the surgeon is going to be placing the implants within gluteus muscles , (a.k.a. “intramuscular pocket”), and that they are using anatomically correct, oval-shaped implants, such as Stanton Anatomic ®️ implants.
Please keep in mind that an extremely few number of board-certified plastic surgeons specialize in these buttock implants so be sure to consult with one that is reputable and experienced. Unfortunately you may have to travel long and far away from home to find this particular surgeon. Glad to help.

NO posted photos to determine if you can be "fixed":??? Best in person or virtual consult with..... Where were your previous surgeries (BBLs) done? Bet a clinic setting and not a private practice??