Trying to edit the article [[Sindhi language]] in VE while the language tool is enabled produces gets the browser stuck with the animated loading bar and produces a JavaScript error in the console:
Uncaught TypeError: Cannot read property 'toLowerCase' of null ve.ce.LanguageAnnotation.js:52
(This is from Chrome; the error in Firefox is slightly different, but it's broken there as well.)
If the language tool beta feature is disabled, then the article can be edited.
Version: unspecified
Severity: normal