Rich Syntax Highlighting non-functional in Jupyter Notebooks (worked before?)

[C-Lunn]

Does this issue occur when all extensions are disabled?: Since it's over SSH, hard to tell.

• VS Code Version: 1.60.0
• OS Version: Client: Windows 10 21H1; remote: Fedora 34

I've exhausted every step I can think of to get this working, and I am still convinced it's something I've done but I've been trying to fix this for about 2 weeks now and can't find anything, so maybe it's a bug.

Using the 'new' native ipynb interface, IntelliSense works but syntax highlighting does not. The syntax highlighting works fine in raw .py files. This worked PERFECTLY fine on my old client, the remote SSH server is still the same.

Here's what I mean:
Raw .py file:
Notebook file:

As I say, intellisense works fine, so it's not that it's not getting picked up.

Steps I've tried:

• Changing theme;
• Uninstalling the Jupyter extension;
• Installing the Jupyter extension;
• Installing the Jupyter insiders version;
• Selecting the 'ignore VSCode theme' option in Jupyter settings (appears to have no effect even after a full PC restart?);
• Reinstalling python extension;
• Installing Jupyter locally as well as remote (it simply does not activate which I believe is the expected behaviour);
• Googled, so much google. Most results pertain to the old ipy interface;
• Shouting.

Either I'm missing something obvious or there's something else going on?

Many thanks.

[rebornix]

@C-Lunn do you see any syntax highlighting when the Python extension is disabled/uninstalled?

[C-Lunn]

@C-Lunn do you see any syntax highlighting when the Python extension is disabled/uninstalled?

@rebornix :
With the Python extension disabled
raw .py:

ipynb:

I lose highlighting in raw py and ipynb files do not change. Thanks.

[lorenzo-w]

Disabling the Dependency Analytics extension fixed it for me (missing syntax highlighting as well as IntelliSense). I took the solution from this StackOverflow answer.

[jakebailey]

Duplicate of #1932; full notebook support is currently a work in progress.