I came across this annoying problem this afternoon. I wanted to make a copy of a boat dock made out of three prefab sections, so I made a Group composed of all three sections (made by clicking the long and then shift-clicking the short and end sections), as shown in Figure 1 below: Figure 1. The first problem crops up when I re-select the group; the long section decides to re-align with the grid, producing an offset. as shown in Figure 2 below: Figure 2. (The green circle is to highlight the location of the problem). Even though it might be possible to work around this by immediately copying the selected group, it still leaves the second problem, in which the first move of the pasted group only moves the initially-targeted piece (in this case, again, the long section). Subsequent moves retain the new arrangement of pieces, as shown in Figure 3 below: Figure 3. The copied dock sections are now side-by side and will remain that way. I am running Firefox 89.0.1 under Windows 7.
