FM Lab - Mute Operator doesn't work

[Yoshi2069]

Hello,
Could you please confirm this behavior?

Steps :

1. Launch DAW.
2. Create new project.
3. Insert Halion 7.
4. Select “FM Synth” (Init FM Synth) on Home menu.
5. For example, select TX81Z 1 Algorithm.
6. Click Operator 4 icon.
7. Change Operator 4 Volume 0 to 99.
8. Click Mute Operator.
9. Play any note.

Expected Result :
Operator 4 icon is grayed out and the operator is muted.

Actual Result :
Mute Operator icon color changes blue to yellow.
However Operator 4 icon isn’t grayed out and the operator isn’t muted.

Note :
When also click Operator 4 icon, the icon is grayed out, Mute Operator color changed Blue to Yellow and the Operator 4 is muted on Halion 7.1.0.646.

Using Envilonment :
OS : Windows 11 Home 24H2
DAW : Cubase 14.0.10.144

[mesayre]

Confirm that I see this as well.

I’m in 7.1.20 on Windows 10

[vbre]

I didn’t do your test case, but I have observed the same behavior when noodeling around with my usual FM drone stuff. MacOS.

[Yoshi2069]

mesayre-san,

Thank you for your confirmation.
This behavior began to occur after updating from Halion 7.1.0.646 to 7.1.20.775.

[Yoshi2069]

vbre-san,

Thank you for your confirmation.
This behavior seems to occur regardless of Win / Mac OS, doesn’t it?

[vbre]

Yes, based on what’s reported in this thread the issue seem to occur on both Win and Mac OS.

[Philippe_Bono]

Confirmed, looks like someone disconnected the UI from the parameter.
Same on my mac here.

Thanks @Yoshi2069 for the great error description and detailed reproduction steps!

As a (inconvenient) workaround, it is still possible to access the mute parameter in the parameter list view:

[mesayre]

Another workaround: shift-clicking on the operator in the algorithm display to deactivate it does work for me.