When I insert a some vst, say 'vst1' on fx rack, then 'vst1' property page is opened.
 
then I click the another vst in fx rack say 'vst2' (already loaded before I insert vst1).
 
At this time, I don't want 'vst1' to be closed.
 
So I turned off 'Recycle plugin windows' option in VST settings.
 
But this does not work at the first time.
 
vst1 always would be closed, and then I click the vst1 again, then 'Recycle plugin windows' works.
 
It seems that this happens whenever I insert a new vst.
 
Is this a bug? or intended?
 
If it is intended, Why?
 
Thanks!
 
Best,
SOHN.

muzdol
When I insert a some vst, say 'vst1' on fx rack, then 'vst1' property page is opened.
 
then I click the another vst in fx rack say 'vst2' (already loaded before I insert vst1).
 
At this time, I don't want 'vst1' to be closed.
 
So I turned off 'Recycle plugin windows' option in VST settings.
 
But this does not work at the first time.
 
vst1 always would be closed, and then I click the vst1 again, then 'Recycle plugin windows' works.

According to the above, it sounds like you are saying that you open VST2 after VST1 is already open, then turn off "recycle plug-in window." I'm going to assume what you mean to say is you turn off recycle plug-in window after VST1 is open, but before opening VST2.
 
If so, then VST1 opened under the "rule" of recycle plug-in window being on. Turning off recycle plug-in window after the GUI is already open is too late, because the VST checks the status of "recycle plug-in window" when it opens, and acts accordingly. You need to turn off recycle plug-in window before opening a VST to have it obey the rule of recycle plug-in window being off.