Random TimeoutException when creating extension class

I'm not sure what the cause is that would trigger it exactly, no other useful information in the error. But this tends to happen after starting to type out the signature of an extension method in an extension block. Able to reproduce it somewhat reliably... up until I restarted LINQPad.

https://imgur.com/a/JAMJKmj

Is this a problem we should look out for?