MacOS user here. If I try to place bricks quickly it crashes. If I try to clear bricks, it crashes. This includes changing maps.
I launched the v19 Beta, opened up the brick menu, and tried to place a handful of bricks by holding down enter (my placement button) and using super shift. I used trace(1);. I don't know what you want from it, so I'll just post all of it after I started using trace.
Try this: <link removed, no longer relevant>