How often does the NPC of hub01 refresh the items?

I waited a long time without change.What should i do they will update the item

NPC shopkeepers should update their stock the first time you attempt to trade with them when it has been more than 3 days since their last inventory refresh.

I assume they don’t need to be in the reality bubble to restock, right? My hub seems to still have the same stuff the day I saw them

You shouldn’t be able to start a trade with an NPC that isn’t in the reality bubble, but if you somehow managed it, they should still restock.

Restocking only changes their personal inventory, not any inventory that they dropped on the floor.