No presets inside third-party plugins

Wavelab 9.5 doesn’t load presets inside third-party plugins on my mac 10.12.6 - not talking about WaveLab’s presets but the GUI presets saved within a third-party plugins
For example, the preset menu GUI in the FabFilter Pro-Q2 plugin does not show any presets and when clicking on the arrows to switch between them, nothing happens.
Same exact behavior with IK Multimedia Amplitube: the GUI menu shows the list of saved presets but when clicking on them, they are not loaded.
I get exactly the same behavior with several other plugins.
Is it a bug? If someone as an idea, let me know!
Screen Shot 2018-09-22 at 2.18.29 PM.jpg
Screen Shot 2018-09-22 at 2.18.29 PM.jpg

Are you using WaveLab 9.5.35?

I just updated to 9.5.35 from 9.5.15 and it seems like the issue has been fixed!