DimPro SyPage window is destroyed when minimized. Can't get it back!

I open a bridged-32b DimPro VSTi (v1.5 from long ago and recently re-installed) into a 64b SPro Sonar (as required!). I get the Synth Prop page and a trk. So far, so good. I select the patch of my choice, it plays via echo, nice. Now, done with the patch selection, I check to see if I can dock that Synth Prop (SP) window. No joy. So, I minimize it, since I'll be back shortly. The Prop page window then disappears, never to be found again. Very repeatable!
 
This happens with SPro Full Scrn and Windowed. The DPro window is not on the desktop, the dock, the Sonar window or anywhere else. Even trying to open the SP from the browser does nothing. If the window gets closed, things are OK. If the window gets minimized it does not then re-appear from even a call on the browsers DPro SP item. Very bad!
 
My workaround is to close it in the browser, start over, and then just close the darned thing, rather than minimize. 
Another really annoying surprise.
 
It will be another couple weeks before I get time to do all the CW-Instrument updates to 64b (much less the other VST's). I don't think that bridging has anything to do with it, rather its a display status/update issue, but what do I know.

• I also observe this with Rapture (32b).

This is not how I'd scheduled my evening, but let's go. It took a couple try's to figure out that the Alt is when selecting OK on the SP page. (I might have to do that again to check). I hate all these hidden keystrokes (Ctrl-Shft in drum map port's??). Now I have a DPro1 BitBridge to toggle VST editor msg. I have no idea (or actually interest) in what this little msg is about. OK, figured it out, this window does have a dock option. Maybe, its just me, but I didn't stumble across this in the help file or tutorials, so far. 
 
It docked. I now have the Click to toggle msg in my dock. Should I click it? Do I need to save first? What the devil, I clicked the little 'error' type msg and DPro displays it's docked window. 
 
I'll try some more stuff with it now. 
Thanks
 

Opening with Alt doesn't really address the minimize 'shrink to death and never be seen again' window problem. I don't want to have to memorize any more 'magic' hidden keystrokes. A DAW should not be a puzzle.
 
But, the Alt open is a nice tip. (Aren't there context menus for that sort of thing?) I haven't found anything in the KBD help files, though I occasionally I stumble across similar 'magic' in the Ref manual.
 
 

The path I've stumbled on is to try and support an 'external-static' X1d_Stud_32b and then just the C3 install and "hope" things work out. Naturally, my file system is already littered with bad experiments that I'm trying to clean up. But without logs of changes, this is pretty risky. 
 
Anything other than full system image BU of a CW system doesn't work. For me, that's already 3 drv's mandatory including the system drv. I have neither time nor interest in sorting out SPro BU issues, particularly with 'freebies', going I know not where!!
 
How many times will I pull this trigger and see what happens?

Understandable. I expect you already have a 32bit installation of some version of SONAR, use it when necessary otherwise start swimming in the 64bit end of the pool. C3 may be updated at some time down the road making 32bit installation easier on a 64bit OS but I doubt the issues you have with shared locations will ever change. They have existed since the initial 64bit release of SONAR. There is no reason to expect losing the ability to work with old projects but there will be issues such as missing 32bit DirectX plug-ins. Bounce/Freeze in the 32bit host is your friend. Everyone with projects created in 32bit DAWs has worked through the same issues.

32-bit plugins will have a button in the taskbar that you can click to re-open them.