First expression in track parts resets to DYN when opening USTX files

[lcpdecastro]

Acknowledgement

• I have read Getting-Started and FAQ

🐛 Describe the bug

When setting the visible expressions on track parts, the first expression will always be reset to DYN once OpenUTAU is closed and the file is reopened. This does not happen when the file is reopened (either by immediately reopening it or opening a different file then reopening the first file) without closing OpenUTAU.

Additionally, although primary and secondary visible expressions are saved along with the project, if the primary expression is set to the first expression and it is not set to DYN, the secondary expression will be reset to the fifth expression when the file is reopened. If the secondary expression is the set to the first expression, settings are not reset.

Explains how to reproduce the bug

1. Create a new USTX file
2. Create and edit a new track part (singer not needed)
3. Change visible expressions in track part
4. Save the USTX file and close OpenUTAU (important; bug does not occur when the file is reopened without first closing the program completely)
5. Reopen the USTX file
6. Open the track part created and notice that the first visible expression is reset to DYN regardless of what it was previously set to

OS & Version

Windows 11, OpenUTAU v0.1.542.0

Logs

(none)