when a requester chest is connected to a network there's some weird bug when trying to copy filter from one chest to another, it appears to be random? most my tries it doesn't copy, but after 5-10 tries i can copy the filter, when the chest is not connected with the logistic wire i can copy normally.
also blueprints do not copy filters, is this intended?

it also appers that copy pasted storage chests only get items pulled from them after they have been opened once by a player

I can't replicate this behaviour. Both pasting with blueprints and copying request chests sets filters correctly for me and even copied and pasted request chests fill with items.

Are you playing with any of other mods? And do you have enough storage network energy buffers?