Syntax highlighting sometimes slips?

[thesoftwarephilosopher]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: Latest
• OS Version: Latest

Steps to Reproduce:

1. Comment out a line
2. Notice the syntax highlighting

More and more often lately, segments of a line are not greened out:

It feels like this has been going on for a couple years now.

[RedCMD]

what language?
code snippet please

[thesoftwarephilosopher]

what language?

English.

code snippet please

[RedCMD]

sorry
as in what programming language?
html, javascript, css, basic?

and can you copy paste the code text
not a screenshot please

[thesoftwarephilosopher]

Correct.

[mjbvz]

VS Code Version: Latest
OS Version: Latest

Please list the specific versions you are using

[thesoftwarephilosopher]

VS Code Version: Latest
OS Version: Latest

Please list the specific versions you are using

Version: 1.99.3 (user setup)
Commit: 17baf841131aa23349f217ca7c570c76ee87b957
Date: 2025-04-15T23:18:46.076Z
Electron: 34.3.2
ElectronBuildId: 11161073
Chromium: 132.0.6834.210
Node.js: 20.18.3
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26100

Edition	Windows 11 Pro
Version	24H2
Installed on	‎11/‎10/‎2024
OS build	26100.3775
Experience	Windows Feature Experience Pack 1000.26100.66.0

[alexr00]

@thesoftwarephilosopher can you please share the values for all editor.experimental.preferTreeSitter.* settings? Which programming language is your snippet?

[thesoftwarephilosopher]

@alexr00 It appears to be unset (I can't find it in the JSON, and they're all unchecked in the GUI). Language is TSX.

[alexr00]

@mjbvz I think this is coming from the typescript language service with semantic highlighting.

[mjbvz]

@thesoftwarephilosopher Can you please share the text of that file too. Thanks

[thesoftwarephilosopher]

I don't have the exact text, the file has since been changed, and it's not consistently reproducable. But it's been happening for a few years on and off, so I would have assumed it's already been reported at least a few times already by now, although if so, it's also probably been closed as can't-reproduct each time. Feel free to close this since I can't (currently) reproduce it, and ifwhen it happens again, I'll post the whole code.