Conversation interruption/steering broken with 0.98/5.3

Pressing ESC should stop the model, and new input should override anything pending. It does not. It's as if (newly _very_ verbose reasoning summary?) output tokens are backlogged and there is a MASSIVE delay before it gets new input, regardless of whether in-session steering, or flat out interruption. I hit escape, tell it to "STOP!", (having already done this previously before in the thread), and it ignores it, and continues to reason for four minutes before "getting the message". It also seems like ESC triggered interruption is now acting like steering, instead of injecting a new turn input as it should.

I opened a similar issue and it was "forwarded to training team" but this seems like potentially a client issue given it's not just steering, but actually hitting ESC.

<img width="1284" height="229" alt="Image" src="https://github.com/user-attachments/assets/fa494c25-82f3-4308-81e7-1f79581cd299" />

<img width="864" height="190" alt="Image" src="https://github.com/user-attachments/assets/479e5383-a042-469f-8dd1-6a507369ea97" />

<img width="143" height="1577" alt="Image" src="https://github.com/user-attachments/assets/5f1c5db6-a2fb-48fb-8b2b-85e0c902569a" />