Hi ! Glad you like the update :)
For the orange orbs, don't worry about it. Thoses are static health packs that will restore most of your life. They aren't picked up if you are already full life. We might change that since we've received similar comments already, and make them pickable regardless of health state.
For the square room, I think you're talking about the boss arena. There's a jump pad near the middle. Have you tried going through the platform to take it ?
Finally, sorry about the renderer issue. We switched back to DX12 on our development version due to having, unfortunately, too many issues with Vulkan on Windows. Next version or hotfix will be with DirectX12 by default ^^
