Factorio Forums

If you have a slot in the player inventory filtered to item X and you have more than one stack of X then when you put the X stack from the filtered inventory slot into the player hand the second stack of X ignores the hand placeholder left by the previous stack. When you then try to put the hand stack back into your inventory the game sees the original slot has been filled (the one that has BOTH the placeholder hand the and second stack of X) and pings the player with a "Can't put away X, player inventory full" even though the inventory still very much has space.

yes, i get this in 0.17.3 aswell, rather annoying i might add.

pressing q multiple times gets rid of the item in the cursor though

only happens if the inventory gets auto-sorted, meaning another stack of the item gets placed in the slot occupied by the hand, if the stack to be put back plus the shifted stacks size is then larger than the items stacksize an overflow of items is left in the cursor which can not be put back.

ie. 107 belts, i take a stack of 100, the 7 slip in the hand slot, i want to put the 100 back, but the 7 are too many which then remain in my cursor and can not be put back in the same hand-slot which is now full