On our 1.29.1-Installation we activated this plugin. The highliting works properly. Also the integration into the VE is generally working, i. e. when adding a code block it asks about language and line numbers. However, when "inserting" i only see the ugly wikitext but not a preview how it will look like after saving. Don't know if this is a bug or a missing feature. Any help appriciated.
Topic on Extension talk:SyntaxHighlight
I think this is T164120, an issue that was fixed about a year ago, and was released in the 1.30 branch of the code. If I'm right, when you upgrade this should be resolved for you. If I'm not and it's a different issue, please give some more details so we can track that.
I think it is another issue since i select a valid language and as a result i am getting a string shown in VE like <syntaxhighlight lang="java"> test </syntaxhighlight>. This string is marked in blue and there is a bubble "code block" with the edit button. Unfortunately, i cannot upgrade to 1.30 in my environment. Could you help to debug this issue. I already checked the parsoid log without any result.