ha! I just came on here to ask about the same problem. sound locks are a huge part of my workflow, so this essentially renders the A4 mkII borderline useless for my needs. I find it hard to believe that artists like Dataline, Carl Mikael, Cuckoo, and Bo Beats, who had early access to test out the OS, put it through its paces, and build tracks didn’t come across this glitch. The support response of “we’ll look into it” seems to convey they weren’t aware of it.