I draw a horizontal line. With the line selected, I go to the Properties deck of the Sidebar. In the Position and Size area, I change the Width to 2.00”. The length of the line in the Workspace adjusts as expected. When I deselect the line (either by hitting Escape or clicking elsewhere) the line disappears from view. The Navigator deck of the Sidebar still lists the line. If I draw a frame around the area where the line was, a small box appears in the document and the Position and Size area of the Properties deck of the sidebar lists its position. However, the Width is listed as 0.00”. If I try to change this setting, nothing changes in the Workspace. When I take the focus of the Width setting, it reverts to 0.00”. The same thing happens if I use the Position and Size dialog. This only seems to happen with horizontal lines.
The problem described in my original post no longer plagues me. The only thing I can think of that may have changed something is that I have been playing with the scale settings recently.
No repro with Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 46d7119b8be03968017e59d882e5671350304e15 CPU threads: 4; OS: Linux 5.19; UI render: default; VCL: gtk3 Locale: cs-CZ (cs_CZ.UTF-8); UI: en-US Calc: threaded Closing per comment 1