Room furni limit decreased

I took a mat out of a room of mine which was full and now when i try to put it back it sais full

Maybe later I will go see how much i have to take out untill I can put something back in.

The previous limit was 700 doormats

or 175 pillows.

Some furni counted as more. Pillows as 4 times as much as mats.

:@ Do you think its because of the loading boxes? And with the loading boxes, I think it takes even longer to load? Because they must load the loading boxes too (If you know what I mean)