Hi @Kush,
Thank you for your patience. I tried reproducing the issue from my side, and the "Vision Studio" is working fine now without any errors. This might have been a temporary glitch.
I recommend trying again by refreshing the page or using an incognito/private browser session. If the issue persists, clearing browser cache or signing out and back into the portal can also help.
Please let me know if you still face the issues. Thank you.