I keep the Recycle Plugin Windows feature turned off, but at Times Sonar still recycles plugin windows.
 
I have a situation right now:
 
1. a bus as a UAD 1176 compressor on it.
2. a different bus has a VUMT on it.
 
Sonar will not let me see both at once. Clicking one closes the other - but all other plugin windows open just fine from what I can tell. I have enabled and disabled the recycle option but that has not helped.
 
How are these two linked?

have you tried pinning it ?

I did try pinning thanks and that didn't seem to help. I restarted Sonar and the problem is gone. Weird.

Is this happening with the July corruptdate? <- kidding
 
The reason I ask is I am having some weird issues with the July update where I will [X] close a plug that is not on the currently selected strip as it closes, bang! the top plug on the current strip bin opens all by itself. This is with plug in windows recycling on. It doesn't happen all the time but it does nevertheless here.