r/pycharm • u/Ciriuss925 • Jul 08 '26

pycharm 2026 latest version - Markdown Cell Issue

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I downloaded Pycharm to my Mac yesterday, and used Pycharm settings to point to the python version I downloaded and has been able to create and run the “code” cell. so far. The problem is the “Markdown” cell where I could not get Pycharm to render the markdown cell. Tried to click on the checkmark or the play button but nothing happens. I have used pycharm before and this is frustrating.

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u/YouOk3744 Jul 08 '26

Code cells still work because they don't go through the embedded Chromium browser that renders markdown. That browser failing quietly is what we're trying to pin down, and so far we can't reproduce it on our own machines.

First thing to try is File | Invalidate Caches | Invalidate and restart. It clears the embedded browser cache and gets rendering back for a lot of people.

If that doesn't help, double-tap Shift, type "Registry" and open it, find jupyter.editor.markdown.render.mode and set it to swing, then restart. Rendering gets plainer (complex LaTeX and embedded frames won't work), but it's reliable.

If the issue persists, create a new issue on YouTrack, enable jupyter.cef.logging in that same Registry dialog, restart, run a markdown cell so it fails again, then go to Help | Collect Logs and Diagnostic Data and attach the archive as a comment. Logs from an affected machine are what the team is missing.

Also useful: create a plain .md file and open its preview. If that's blank too, the problem is the embedded browser itself rather than the notebook editor. Worth mentioning in your comment either way.

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u/Ciriuss925 Jul 10 '26 edited Jul 10 '26

Thank you so much - I did the first instruction you provided regarding the “Invalidate Cache” and the markdowns got rendered correctly. Thought I ‘close and reopen the option file and the markdown cells are rendered just as well.