Hi all, tearing my hair out here! Recently bought Slate Digital buss compressor package. Installed fine. Registered with iLok fine. sonar found dll files fines. The problem comes when I try inserting VST onto a bus or track, I get a plain white box. The outside and menu at the top shows the correct VST has loaded, but where the GUI should be is just plan white.
 
I've loaded VST3, I've reinstalled and used VST2. All are 64 bit, system is 64bit, not had this issue with any other VST. Anyone else come across this? TIA

I had this issue with 112db Redline Reverb.  I have a 64bit system as well.  Where are the plugins installed? I know on my system I have a Slate folder in Program files then the  vst is in program files/cakewalk/vst plugins.

Thanks, installed in the same place as yours. In the end got fed up of installing, reinstalling, moving folders etc. so contact SD who provided a response within 15mins! Guessing it's a known issue as they sent me a legacy installer and all is working fine now