There is only one scanner used by CbB and SONAR but each DAW has its own path settings and VST Inventory in the registry. The most common problems cause a dialog to appear giving an option to enable the plug-in anyway. For commercial plug-ins I always enable and do not recall having any issues. Sometimes the scanner will hang, Zeta+2 does it for me. In that case, i kill the scan, move the plug-in out of the path, run another scan. When I get a completed scan, I add Zeta+2 back. The next scan always picks it up.
A couple of tips
1) Do not cause the scanner to work more than necessary.
- Avoid duplicate paths. The scanner starts at the paths specified in Preferences and search every folder below them.
- Avoid scanning areas that do not contain VST2/3 plug-ins such as the paths contain DX plug-ins.
- The "Rescan Failed Plug-ins" and "Rescan Existing Plug-ins" options are off by default and in most cases should be left that way.
2) To create a scan log - hold the SHIFT key while clicking the scan button. A toast message should appear advising a log is created.
And yes 32bit plug-ins are still supported using BitBridge.