Recent changes to the LaTeX settings have caused various issues, including incorrect rendering of commands like \lim and problems with case sensitivity. The preview function is malfunctioning, making it difficult for users to verify LaTeX before posting. The switch to MathJax 3 has introduced some broken custom functions, prompting discussions about potentially reverting to version 2. Users have reported that refreshing the page is necessary to see LaTeX rendered, and there are ongoing concerns about the overall performance and rendering speed. Developers are working on fixes and improvements, but some issues remain unresolved.