MidiClips in PatternEditor disappear after changing time signature

[regulus79]

System Information

Arch Linux, GNOME 47, Wayland

LMMS Version(s)

1.2.2 and master

Most Recent Working Version

No response

Bug Summary

Changing the time signature can cause midi clips within patterns to disappear. They still play, but you cannot edit them or interact with them in any way.

Expected Behaviour

The midi clips should not disappear when the time signature changes.

Steps To Reproduce

1. Open LMMS
2. Press the new pattern button
3. Change the time signature while in the 2nd pattern
4. Look at first pattern
5. Look at the second pattern again
6. The clips in the second pattern have disappeared

Logs

Screenshots / Minimum Reproducible Project

Please search the issue tracker for existing bug reports before submitting your own.

• I have searched all existing issues and confirmed that this is not a duplicate.