The batch of film is likely ok, but you may want to do some lab shopping. With your current lab, you should show them the film and see if they will work with you in correcting the problem.
Some films are more prone to reticulation than others, I think the Fuji films are among those, but I don't know for certain. If you search reticulation in here there should be lots of information.
Generally, it's caused by sudden temperature changes in processing, either large temp differences between the chems, or, temperature shifts during washing (somewhat more likely).