Created attachment 148460 [details]
Source for copy&paste test
Open attached file and start a new text document.
Copy the rectangles to clipboard and paste clipboard as "drawing format" into the text document.
The inserted shapes have lost the alignment of the second paragraph. The entire text in the shape has got the alignment of the first paragraph.
It would be possible to use two different alignments in one shape in Writer too. Test it. Mark one paragraph in the shape and e.g. click a different alignment in the Text Object toolbar.
Version: 126.96.36.199 (x64)
CPU-Threads: 4; BS: Windows 10.0; UI-Render: Standard;
Gebietsschema: de-DE (de_DE); Calc: group threaded