Help: effect settings in multitrack view default and turn off when I re-open the effects settings

Dear expert community members, I am facing a perplexing issue:

— I am editing a podcast in Multitrack view,

— I am adding an effect to a particular track in the effects rack (my current case: a noise gate from the "Dynamics ..." submenu),

— I am changing a parameter (say, threshold from -20 to -30 db),

— I am closing the effects dialog window to work on something else.

I can now playback the track and everything works nicely. HOWEVER: When I return to the same effects setting, say because I want to tweak it, it returns to default *the moment I open the settings window* ("Dynamics ..." in this case). So I can only effect the settings one single time — as soon as I go back to the settings, they switch off (!) and default back to the company setting.

Is anyone else experiencing this? And what can I do about it? On here, I have only found a single post from 2017 that deals with a similar issue, but it was resolved in ways that do not work for me. I have tried re-installing Audition, but that did not help. My version of Audition is 23.6.1.3, on a Mac OS Big Sur 11.7.10.