Semantic highlighting lost and stuck on static Lexer (purple symbols) after page reload or notebook open

[Hachann]

When opening an existing notebook or using "Reload page", all Wolfram Language input cells default to a generic "keyword" styling (all symbols in purple). Even after the Kernel is successfully started and cells are evaluated, the semantic highlighting (differentiation between Global, Local, and Builtin variables) is not applied to existing cells. New cells created after the Kernel is live are highlighted correctly.

Here is an example :

p2 is in black because the variable p2 has not been executed yet and has just been freshly written. generateOHLC in the same line is in green because it's already defined in the notebook.

So far, this behaviour is excellent.

But, the line below clearly shows that the same symbols appear in purple and stay in purple even after execution, just because a) the line was already in .wln file or b) I hit the Reload page button.

I didn't find any CSS rule that could improve this behaviour

[JerryI]

True. This is not related to CSS or something, it is a problem of how the code editor handles kernel reloading (has some issues).

Usually if the kernel is already connected, and if you focus on the problematic cell, insert/delete a character it will rescan tokens and should highlight in the correct color.