Problem with plug ins

I run the MAC version of Adobe Audition CS 5.5 on a mid year 2010 issue MacBook Pro with 8 GB ram, running OS X " El Capitan" version 10.11.6 . Audition runs fine, stable with no issues, however there are many effects that exist within the lists of available plug ins that say " Powered by isotope". I am have problems with these. I believe that these plug ins, if you will, came as part of Adobe Audition ??  When, for instance you insert a multi band compressor on a mono track, you can hear it is doing something however realtime indications of things that should be showing status such as gain reduction and bargraph level indicators are not indicating. Same as spectrum display. Also, adjustable parameters such as setting amount of gain reduction via the sliders that should be movable with the mouse will change the parameter, you can hear it...  but again you do not get visual indication on screen that you moved the slider. This appears to be the case with many available plug ins that all say " Powered by isotope".   Plug ins from vendors such as Waves that I own all work proper. Can anybody please give me some direction, ideas that I might try or any suggestions to resolve these issues. 
Thank You, Terry K