JN 5.3.2 Starts with dead Python3 kernels

[RiskofStorm]

I use anaconda without touching any JN settings. After update "conda update --all".
Notebooks(Python 3 kernel) starts, connects(server same PC), but Python kernel shows up dead.

Win10 x64
JN 5.3.2, Anaconda 5.20
Browser: NoJS is off, uBlockOrigin is off
Python 3.6.6

I've tried to restart PC -> Nothing.
... to uninstall JN/Tornado -> conda install Jupyter -> Nothing.
Uninstall Anaconda -> install Anaconda 5.20 -> conda update --all -> Nothing.

LOG:

[C 17:12:55.033 NotebookApp]
    Copy/paste this URL into your browser when you connect for the first time,
    to login with a token:
        http://localhost:8888/?token=35e578d78f5d3ccaf34392fba46939c93026a51afc1b5ffb&token=35e578d78f5d3ccaf34392fba46939c93026a51afc1b5ffb
[I 17:12:56.014 NotebookApp] Accepting one-time-token-authenticated connection from ::1
[I 17:13:09.599 NotebookApp] Kernel started: db741f94-a1e3-4bed-b324-48f94465b6eb
[W 17:13:19.787 NotebookApp] Timeout waiting for kernel_info reply from db741f94-a1e3-4bed-b324-48f94465b6eb
[I 17:15:08.679 NotebookApp] Saving file at /Untitled.ipynb
[I 17:15:21.443 NotebookApp] KernelRestarter: restarting kernel (1/5), keep random ports
kernel db741f94-a1e3-4bed-b324-48f94465b6eb restarted
[I 17:17:08.708 NotebookApp] Saving file at /Untitled.ipynb
[I 17:17:30.507 NotebookApp] KernelRestarter: restarting kernel (1/5), keep random ports
kernel db741f94-a1e3-4bed-b324-48f94465b6eb restarted
[I 17:19:39.593 NotebookApp] KernelRestarter: restarting kernel (1/5), keep random ports
kernel db741f94-a1e3-4bed-b324-48f94465b6eb restarted
[I 17:21:51.781 NotebookApp] KernelRestarter: restarting kernel (1/5), keep random ports
kernel db741f94-a1e3-4bed-b324-48f94465b6eb restarted
[I 17:24:03.832 NotebookApp] KernelRestarter: restarting kernel (1/5), keep random ports
kernel db741f94-a1e3-4bed-b324-48f94465b6eb restarted

[RiskofStorm]

After new update of jupyter Python kernel's no longer dead. Thanks !