Hi Summer;
What is the make & model of your BCD? How old is it? Did you buy it new or used"?
Velcro is great stuff. Almost as great as zip ties and duct tape, but it does not last forever. If the velcro is worn out then you may need to have it replaced. If the BCD was purchased new from a Dive Shop (and only a year old) then it "might" be covered by warranty.
I have a weight integrated BCD with velcro closures on the pull panels (for easy dumping) but I don’t load the weight pockets using these closures. Each weight pocket is equipped with a zipper closure at the top, for use in loading and unloading weights. The velcro is only used for emergency weight dump. This way, the velcro does not wear out.
Ron sends