I just found consistently repeatable bug.
FLS 9 has an option to "detach" the GUI of a plug-in to allow it to be moved anywhere on the screen. When I make the Aalto GUI detached, if I click on Aalto's patch name box to get the menu of patches, the menu flashes and immediately disappears. Undetaching Aalto fixes this problem. I didn't see this problem with the previous version. The workaround is no huge deal for me, just a bit annoying, but if you have time to check this out, please do so ... I do hope the reason for it isn't buried in the Juce innards!
Respectfully,
Greg Williams
Gravel Switch (really!), Kentucky
Thanks, will look into this.