Weight loss causing breast implant rippling?

Without examining you or seeing photos its difficult to give specific advice but what you are saying makes sense. Over the muscle implants require some coverage from the breast tissue, which is partially made of fat. In losing weight the coverage over your implant thinned and now its become visible. In theory, gaining some of the weight back may help cover it better, but weight gain is very unpredictable so you may not gain it where you are hoping to so be careful. Best of luck! 

I am sorry to hear about your concerns after breast surgery. Although I cannot provide you with specific advice, some general thoughts may be helpful to you. You may also find the attached link, dedicated to revisionary breast surgery concerns, helpful to you as you learn more.
Palpability and rippling of breast implants may be related to several factors. These include the amount of soft tissue and breast tissue coverage over the breast implants, the position of the breast implants (submuscular versus sub glandular), the type of implants (saline versus silicone), and the degree of overfilling of saline filled implants. Generally, weight loss will extension weight any rippling/palpability of the implants. Deflation of saline implants will also increase the rippling/palpability of the implants.It is impossible to predict whether weight gain will help with breasts implant rippling/palpability.
Correction of the rippling may involve further surgery including implant pocket exchange if possible (sub glandular to submuscular), implant exchange if possible (saline to silicone), and/or the use of allograft to provide an additional layer of tissue between the implant and the patient's skin.  
 When the time is right, in-person consultation with board-certified plastic surgeons who can demonstrate significant experience helping patients with this type of revisionary breast surgery will be your next best step.  You may find the attached link, dedicated to this type of revisionary breast surgery, helpful to you. Best wishes.