It seems the whitelist/blacklist (at least for fuel) is not save so when you leave the game and launch it again, you have to set up everything again. I have no idea what can cause this problem.
I also noticed than, on highter speed game level (currently two but my computer can't handle that so around 1.5) the ammo loader seems to stop working for some tower. I have around 1 500 turrets linked according to the chest and some gun tower are still out of ammo. I try to reload the table but it takes several minutes and don't really solve the problem. I try to add more chest but same. I have 2k uranium ammo in my requester ammo loader chest. (I switch to laser defense because of that so that's not the main subject of this repport).