I'm having the same issue on pc (steamdeck, specifically). I can sort inventory just fine in every situation _except_ when my Traveller's Chest is open. If I try to sort then, it just freezes up the whole game and I have to hard shut it down. It wasn't a problem before the latest patch, and inventory quantity hasn't made a difference, as it happened when I emptied all but a few items.
I'll be submitting an actual report, but wanted to post to let you know it isn't just console sadly.
Before the last patch (3) it only happened a couple of times. After the patch it happens EVERY time.
