Hi Grinster,
Thank you for posting your question here!
Shift W and 1 doesn’t work in Roblox because the game focuses on movement first, so the number key doesn’t register while you're holding Shift and W. You can fix it by turning off Shift to Sprint in the game settings, disabling Sticky Keys in Windows, or rebinding sprint to another key like Left Ctrl. Some keyboards also can’t read three keys at the same time, so if that’s the case, you’ll need to change the item key to something else. Resetting your character or toggling fullscreen can also fix input bugs in Roblox.
Let me know if you need further assistance, feel free to ask me by clicking "Add Comment" or "Add Answer" if you cannot add comment so your response will be visible. Thank you and I appreciate your effort.
Regards,
Angelique P.