r136 HF8 and r137
When picking up an item while a sack or multiple sacks is/are in the inventory with auto-insert on and whether or not a filter is applied, the filled slot count is only updated after opening the bag containing the picked-up item. Removing an item does not immediately update the count, but closing the bag results in the count being updated. Also tested with new singleplayer world and 0 other mods and same result. [Best mod evar, BTW!]

Ah. Yeah. That's a result of the fix which makes it not crash if you shove too many NBT-filled items inside of it. I should probably just remove that tooltip now.

That's a shame, as that is a super-helpful feature when carrying multiple bags. Thanks for all you do, regardless!