ADCTY 2.4.1 Mac os 10.12.6

a lot of effect failed , i do not know what to do

thanks a lot for your light and time
Screen Shot 2020-07-14 at 3.51.03 PM.png

Did you look in Help > Diagnostics > Show Log to see if there was any more information?

– Bill

I’m guessing that the “AM pitchshifter” effect is from the SWH LADSPA plug-in set.

I would not expect the SWH LADSPA plug-ins to work in Audacity 2.4.1 because Audacity 2.4.1 is 64-bit and the SWH LADSPA plug-ins are 32-bit.
Also, Audacity’s built-in pitch shifter is likely to be a much better pitch shifting effect than the old LADSPA version.

Please note that Audacity 2.4.1 has now been superseded by Audacity 2.4.2: