## Your environment * 3.1.3 H5 version * chrome windows ## Steps to reproduce https://jsfiddle.net/adumesny/63c7e4ps/ came from #1210 ## Expected behavior when you drag an item from grid2 below into one above, grid1 should grow just enough to contain new item ## Actual behavior seems to grow repeatedly and insert at least 3 rows (seen worse) https://user-images.githubusercontent.com/3496166/103484449-cbd9f900-4da3-11eb-90be-53e11994221b.mp4