I think they fixed it because now everything runs fine at least for me 
We’re fixing lots of underlying issues in the New Type Solver that can lead to this sort of behavior every week. People will have varying experiences because the codebases they’re working on vary, and may or may not trigger bugs in the New Type Solver that cause it to run off forever. Obviously, if you’re excited to use the new system and are not running into any exponential blowup bugs that cause autocomplete to disappear entirely, then we’re very happy to have you using it! It’s just useful to know that if this is happening consistently for you, it’s not anything you’ve done wrong, but just a bug that we will resolve as soon as we are able to in the type inference system.
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