Bugs in 4 viewports

since updating to the last wip i’ve faced 2 bugs that kill me
both seem to only happen in the quad viewport

  • the viewport shakes when i perform any action, and theres a constant black line at the bottom
  • very laggy cursor

here’s a vid of both issues—zoomed into only one viewport, but it happens in all four

macos ventura (13.2), m1 max