sorting seems to mess up item counts

[nonchip]

e.g. if i sort (via sort_storage = the button in the bottom left corner) a (rather large, with about 50 chests and 5 interfaces, some of which get items piped in) system that showed having 1000 of an item, it might suddenly jump up to 1200, just to then (sometimes, sometimes not) jump back as soon as i take the item / stack out and put it back in.

seems like it both sometimes just doesn't know about new items unless i sort (even if the blocks they're in are forceloaded), and sometimes counts them multiple times when sorting.

i'm using an automated system to void surplus items and keep a stock of others etc, so this is a rather big issue if it keeps getting all the wrong item counts whenever something got sorted.