Yeah, I got the same issue when updated to version 2023.9.290703 on MacOS https://forums.k8slens.dev/t/can-not-exec-to-pod-when-update-2023-9-290703-on-macos/1799/1. They said that the issue was caused by a timeout read config or something to connect to the shell, and they will increase the timeout in the next version.
I am still waiting, you can exec by yourself instead, for ex: k exec pod-name -it -c container-name -n namespace -- /bin/sh