When I use the Apply Bandage option from the Health tab to bandage a wound, it seems to like to unpack bandages from my fanny pack instead of using the ones that are already in my main inventory. This not only makes it take a little longer to bandage, it also means that I have to constantly put them back or end up with a bunch extra in my main inventory (rather than just reusing the same two bandages).
This happens with no mods. Not sure if other items have the same issue.