1 Convert an WMA having a trailing space one the filename to Apple Lossless, using:

Output To
Source Drive:\[REPLACE]For Windows,For Macintosh,Source Path[]\Source Filename
Expected: filename preserved
Observed: trailing space lost e.g. https://i.imgur.com/XqXi3QE.png

Note: the List & Rename Files dialog at this button https://i.imgur.com/Y94UufR.png shows the source filename in a way that doesn't make it possible to see whether there is a trailing space e.g. https://i.imgur.com/uLZjcfd.png