Above I sorted it by name, after closing it and opening the terminal again, it defaults to the sorting of item amount and not the original sorting I assigned, when I press descending or ascending it fixes itself to that sorting

This is Tom's Storage 1.6.6 on Minecraft 1.20.2 with the TNP Limitless 7 Modpack

Update the mod, can't reproduce with the latest version

It seems isolated to a world that I have on, I tested it on another world and it doesn't really show up. So I think sthis is isolated on the world that I am playing on only.