Our team is looking into this, but so far, we haven't been able to reproduce any issues with Snowflake + Oauth 
We also haven't been able to track down why this IP address is mentioned.
If you can share more screenshots of how the resource is set up, that could help us try to re-create this. For troubleshooting, I'd be curious if you are able to connect to Snowflake using username & password
I'm not sure if we will be able to fully solve it on the call, but you're welcome to join group office hours so that we can take a closer look