Next + jump command skipping values

Good morning,

I am using the next and jump commands to iterate over values of some variables in my input file. It was working ok so far, but now sometimes I find that the command just seems to "skip" some values of the variables. In the following set of variables it jumped from a=43 to a=45. Someone knows a reason for it and how to fix it? The skipping seems to be made over all the 4 variables at the same time.

Excerpt from my input file (attached):

variable a universe 42 43 44 45 46
variable sf universe 0.3 0.5 0.7 0.9 0.1
variable rf universe 0.7 0.7 0.7 0.7 0.9
variable CED universe 10000 10000 10000 10000 10000

........
........

next a sf rf CED #iterate over variables
clear #delete old simulations results
jump in.multisphere #jump to top

Thank you in advance!

John PACHON