There was an extremely bright full moon last week - that will sometimes throw gliders off their usual eating and sleeping routines.
Your males may also be reacting to one or more of the females being in heat. Even if they are neutered the girls may be distracting them.
The females may not be eating as much when they are in heat either.
Another possibility is that they are just reacting to your stress of getting things ready to move.
HPW Complete is a practical way to feed them on the road since it can be prepared adding water only and made up just for the night so you won't need to keep it cold.
If you are going to change their diet, I would wait until after you get settled in your new home if you want to use a feeding plan other than HPW Complete. Try not to change too much in your glider's lives until they have settled into their new home.