bug: crash when opening another file from explorer or file from command line

[darcywong00]

Reported from https://community.software.sil.org/t/speech-analyzer-crashes-when-opening-another-file-from-the-explorer-or-the-command-line/5329

When opening a second file from the explorer or using a command line, Speech Analyzer crashes, sometimes showing first the above message box. This doesn’t happen when opening files from the file menu (recent file list or open dialog box).
Windows 11 Beta, Speech Analyzer v3.1.1.2