How come ?? This is a $199 reverb unit, you'd think it would work with no headaches.

Assuming a scan has run since its installation and you are not using a custom layout
Verify the plug-in is in the scan path
Check the excluded list in the Plug-in manager
If it is in the excluded list run a manual scan with the "Recan Failed Plug-ins" option enabled. When the scan completes turn of the option.
 
It might be listed with an unexpected name. The "Sort by Manufacturer" layout may help in that case.

been scanned about 20 times
have installed the the program into the vst files i could find.
 
I checked the excluded list not there
 
nothing helps. 
 
works great in studio one and cubase
 

Maybe a scan log will help
 
To create a scan log - hold the SHIFT key while clicking the scan button. A toast message should appear advising a log is created.

Mine got installed to c:\program files\vst plugins\QL Spaces x64.dll if that helps. 
 

I've had problems like this with various vsts, Spaces among them. Eventually after enough moving stuff around I was able to get them all picked up. However, when I installed CbB, it picked everything up. So if you're not running CbB, installing it may solve your problem. (You didn't mention what version you're running).