Same here with 9.5.1 - not very stable and freezes often. Audio lanes are blacked out so comping impossible. Legato function not working for chords. Adio export is v slow. Using windows 10 with intel internal graphics on mobo.
Have reverted back to 9 for some projects which seems more stable. I didn’t notice as much freezing with 9.5. No reply from support in almost 2 weeks.Sometimes even opening up the help page takes ages. I would say its the least stable update I have worked with. I can’t see how to roll back to 9.5. Tried searching and no clear answer how to do this.