I suppose you could try uninstalling studio on the computer that studio doesn’t work on and checking for updates. Check if Roblox studio and your computer itself is up to date as well and your internet connection and provider.
Also, if you just run the game the game instead of joining like normal you might be able to check the output to see if anything is having issues. Also, have you tried joining other games on your computer and tried to see if they had the same issue?
Lmk if you have any more questions.