I am not really sure how to best describe this issue that I have found but I will give it my best effort.

After initially placing the vault for the first time I go in and select my storage containers to populate the list of scannable containers for the mod to use and then I make sure they are all selected as Mass Storage Box by going down the list and clicking each one individually and checking it and then I go on about playing the game like normal.

This time however I realized I had forgotten to build a couple of containers so I went back and built them, placed them and then added them to the list of scannable containers however when I went to make sure they were selected as mass storage boxes they were already checked. I thought this a bit odd seeing as this was a new map and I hadn't used these particular containers yet so I went down the rest of the list and found that after I had added 2 containers to the list the two at the bottom (which were not the new ones) had become deselected as mass storage boxes.

This makes me wonder if somehow the Mass Storage Box check box is not attached to the specific container but infact is just attached to whatever happens to be in that position in the list of containers therefore when adding new containers that esentially makes the list longer whatever is at the bottom will become deselected and the new container will automatically be enabled.

I had a similar issue with the last map I was playing on and I could have swore that I had already selected some containers for storage and then I added more and had some issues then went and checked and they were deselected. So aparently I stumbled across the problem previously but was just unaware of what had happened.

I hope this description works but if not please let me know and I will try to clarify it better if I can.

One suggestion for an added feature I would like to mention is the Select Destination list after selecting an item in the storage list. If I want it to go someplace other than my personal inventory such as sending metal to a refinery to be smelted the list is getting extremely large with the inclusion of the torches and other containers that I don't use with this mod. If there is a way to make the Select Destination list mirror the Container Selection list that would be amazing. We could add refineries and other crafting stations to the list but just leave them turned off as mass storage boxes and still be able to send items to them that way without having the entire list of basically everything on the base to sort through to find the right container. Or even possibly just making the list sorted alphabetically would improve it's function greatly therefore we would know about where our chosen destination would be in the list.