Can not load effects

[Ted Vanya]

Old Cakewalk user, W10,  latest version of Cakewalk. I do not know what I did, but recently I can not load any effects in any of my existing projects. When opening an existing project, which do have installed effects, they work, no problem, but if I delete  the effect, I can not reload the same effect, or, any effect.  If you wish to help, please just think in the line of what I could have done recently to arrive to this problem. In Plug in manager everithing looks fine. Thank you...

[scook]

Guessing the FX Racks are not displayed.

If this is the case change the workspace menu to Advanced, None or create your own workspace.

 

[Ted Vanya]

Dear scook,  no, the effects rack is available, clicking on insert audio effect, Sonitus reverb, or Valhalla Room, nothing happens. But,  I can insert Sonitus Equalizer. I am suspecting that maybe one of the Pro Channels have  reverb, not allowing to use an other instance  of reverb?  But opening all Pro Channels, nothing shows up but the usulal EQ.  Regardless, turned Workspace as you suggested, no change. Thanks a lot for your help. 

[Nigel Mackay]

Having something in the ProChannel won't cause the problem.
Me, I'd uninstall and reinstall Cakewalk. (Backup all your projects first.) It is a painless, albeit time consuming process.