I have a problem with dedicated 32bit plugins in reaper 32bit when they are wrapped to still be in the main reaper GUI.
If I don't "pin to front" then they end up sometimes just disappearing behind reaper until I click somewhere on the arrange page which brings them back to the front again.
I tried justines method it works well when there is just ok dialog box. It disappears, but when there is choice like yes,no or cancel, it doesnot help.