Vector arrows rendered using the TeX command \vec are displaying excessive white space after the symbol, affecting readability. This issue appears to be browser-specific, with users reporting the problem in Safari on Mac OS and iOS, while it renders correctly in Firefox and Chrome. The MathJax team has acknowledged the issue and indicated that it should be resolved in the upcoming MathJax v2.7 release. Users can test the fix in the beta version before the official update. The discussion highlights the importance of browser compatibility for proper rendering of mathematical symbols.